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anonymous
 5 years ago
OK. I need help solving a linear system by using the elimination method, but I also need to arrange the like terms, but sadly I don't know how. The linear system is 1. 2x  y = 32 2. y 5x = 13. The second equation needs to be arranged. Please help?
anonymous
 5 years ago
OK. I need help solving a linear system by using the elimination method, but I also need to arrange the like terms, but sadly I don't know how. The linear system is 1. 2x  y = 32 2. y 5x = 13. The second equation needs to be arranged. Please help?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I'll try to help. Are you still around?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Okay, gimme a sec. (writing problems down)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0The first trick, is to line the equations up, with all of the variables and numbers in columns. This makes it easier to see what we're looking at.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yeah I did that. I need to write it in standard form, but the x and y are in the different places.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So, in other words, here is how I rewrote them. y + 1.2x = 32.2 y  5x = 13

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Oh, lol, I didn't even think about standard form.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0The original equation for the first one is 2x  y = 32

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0How did you get 1.2x?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ahhhh! Okay. Let's rewrite the equations in standard form. ( I read your first post wrong)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.02x  y = 32 5x  y = 13

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Do you remember the additive identity property?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Okay. That property lets us move the addition/subtraction terms around however we like.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0That's how I was able to rearrange the terms

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Do you also remember that you can multiply both sides by a negative?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So did you arrange the like terms correctly?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.02x  y = 32 5x  y = 13 ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I'm going to multiply the top equation by negative one, and then I'm going to add the two equations together. And, yes.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Standard form is X + Y = Z

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Your going to solve for one variable right?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yup. One way we can accomplish this is by adding the two equations together.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I thought standad form was Ax + By = c?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Uhh.. Yes. You're more right. (Sorry, haven't used standard form in a while)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Okay. So let's multiply by (1) 2x  y = 32 becomes 2x + y = 32

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Okay and then your going to add it?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yes! Now, it becomes very apparent why adding equations is awesome. 2x + y =  32 + 5x  y = 13 ( I need to double check the negatives)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yeah, it's 2x + y = 32 + 5x  y = 13 I didn't need to multiply the top equation by negative one, (oops!), so I multiplied the bottom one, so that they'll add up nicely again. (Sorry for the confusion)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Would you add them together please?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yup! Now you just need to clean up.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Now, substitute x for  15 on another equation, and you'll get y. ^^

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.02(15) + y = 32 30 + y = 32 y = 2

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Hmm..... Something went wrong. Argh! Sorry!!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I use it in the original equation don't I?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Alright, let's try this one more time! Hang on, gimme a second.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.02(15)  y = 32 30  y = 32 y = 62 y = 62

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Hey I checked..and your right.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0The solution is (15, 62)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0O_O Yeah. I checked it. Just some bad 'rithmatic

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ow. Okay, cool. Whew. I was worried I led you down the wrong path. Hehe

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Anyway, awesome. Take it easy, and God bless with the rest of your homework. ... Yikes. I think I need some sleep!
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