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anonymous
 5 years ago
3x7y=21. Need the 3 ordered pairs where #1: x=0, is __ #2: y=0, is __ #3: y=6, is __.
anonymous
 5 years ago
3x7y=21. Need the 3 ordered pairs where #1: x=0, is __ #2: y=0, is __ #3: y=6, is __.

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok, so for the first one, you would plug in 0( which is x) in the equation.: 3(0)7y=21 07y=21 y=21/7 y=3, so first ordered pair would be (0, 7) for the second one you would plug in0 for y this time, and in the third one you would plug in 6 for why, and solve for x on that too. then you have your three ordered pairs

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I am still not getting it so need more help

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok, so lets do the second one

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok i tried but got lost

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the second one says y= 0 so we are going to plug in 0 for the y, in the function: 3x7y=21 so when we plug in 0 for y, the function now says: 3x7(0)=21 next we multiply 0 times 7, so we get: 3x0=21, which is basically 3x=21 next, we finaly divide 3 on both sides to get x by itself x=21/3 which is x =7

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so now that we know that x=7 , when y=0, the ordered pair is in the form of (x,y) which in this case, it would be (7, 0). that is your second set of points. did you understand this?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0well when i did it it was a little different but it did not look right but had the same answer

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0for the last one i started with 3x7(6)=21

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0don't I replace the y with 6?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes, but what is 7 times 6. can you hold up for a sec

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.03x7(6)=21 is the correct next step, but what do you get when you multiply negative 7 times negative 6?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so you should have 3x42=21

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0no, its going to be 3x+42=21 because we got positive 42, not negative 42

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes 3x+42=21, what do we do next?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0get x by itself by using 3

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0we still have that 42 there, and we need to get rid of it, so how do we get rid of that 42: 3x+42=21

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.03x +42 42 = 21 +42  42

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0there we go! and what do we get?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0wait whats 2142? 21!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I thought the 42s cancelled each other out

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes, but its not 3x=21 its 3x=21

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so this is what you got 3x +42 42 = 21 +42  42

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0why did you add 42 both sides? you were only supposed to subtract 42 on both sides. try it again,

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.03x +42 42 = 21 42 is what you should get

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok i put an extra one in there

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0exactly so figure it from this: 3x +42 42 = 21 42

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes so it should be 3x=21

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so (21,6) is the ordered pair

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0we stil need to find x! we were left with 3x=21 ! remember we need to get x by itself!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok so we us 3 on both sides

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0we divide 3 by both sides

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0damn this thing hangs up on me a lot. so we should end up with x = 21

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so x=7. gosh, what grade are you in? and math level?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I just started college last year Oct and I graduated in 1969 and had just basic math. I was able to transfer 52 credits from my military career. So I am about a late sophmore or early junior. math is 092 which is pre algebra

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0college 0.0i learned this in 6th and 7th.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ya I know but I have never had algebra before

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0and im in 9th. yaaay! i feel so smart!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0when i was in high school we did not have algebra and geometry. it did not exist

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so when i was in 12th they were just starting it as an elective.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I guess that is why it is so hard for me.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0whoa! it really does amaze me how far human intelligence has gone. I cant imagine how advanced our human race will be in he next 40 years

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ya i know. i wish there was a way for me to shock the heck out my brain so it would be easier for me to learn

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0lol, so do i! agh sooo much work!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ya but you understand this. I son't understand any of it. I just started in Jan to learn this junk

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ya, this si easy. but im doing precal, and ap microecon, and ap Human Geogarohy, and ap bio
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