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anonymous
 one year ago
Two equations are given below:
a − 3b = 4
a = b − 2
What is the solution to the set of equations in the form (a, b)?
(−2, −2)
(−3, −1)
(−9, −7)
(−5, −3)
anonymous
 one year ago
Two equations are given below: a − 3b = 4 a = b − 2 What is the solution to the set of equations in the form (a, b)? (−2, −2) (−3, −1) (−9, −7) (−5, −3)

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0since you know what a is equal to plug its value into the first equation so that you have the first equation only in terms of b, then solve for b

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what is a equal to? according to the second equation

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thats the thing I dont know:(

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if i show you this, z = 10, what is z equal to?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0perfect, now if i show you this, a = b − 2, what is a equal to?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok lets make sure you understand this, if i show you j = 5i +z  2, what is j equal to?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok back to your question, so we know a is equal to b  2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0since a is equal to b 2 can you please replace a in the first equation with b 2 since they equal the same thing

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0now can you solve for b? with that equation b 2 3b = 4

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0cna you help me on this one?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0to solve for b we need to find out what b equals, so we have an equation that has only numbers and the variable b, so we need to perform some arithmetic on the equation to get b by itself on one side of the equals sign

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so lets start by only getting terms with a b in them on one side, so if you have b  2  3b = 4, what would be a good step to take so that there are only terms with b in them on the left side?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how can i get rid of the 2 on the left side?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what happens if we add 2 on both sides of the equation, what do you get?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i get 6 on the right hand side of the equals sign but what about on the left side?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0b  2 + 2  3b = 4 + 2 b  2 + 2  3b = 6

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0hey I have a few minutes left to turn this in please help

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i am helping, if you just want the answer, i cant do that

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I dont but think it is A

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if you change your mind and want to keep working through it let me know

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok so we added 2 to both sides to get this b  2 + 2  3b = 4 + 2 b  2 + 2  3b = 6 can you simplify this and tell me what we get?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0close, but 2 + 2 is not equal to 4

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohhh sorry got a little confused

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok so 2 + 2 = what?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0perfect, now we have b + 0  3b=6 which equals b  3b = 6

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0can you simplify b  3b = 6 by combining the b terms?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if i have 1b and i take away 3b's how many b's do i have?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0do I just do 3b=6???

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so we are almost done we have 2b = 6, now how can you get b by itself?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how can we get rid of the 2?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0by adding 2 on both sides

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0by dividing both sides by 2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes thats what I meant lol

anonymous
 one year ago
Best ResponseYou've already chosen the best response.02/2 = 1 so (2b)/2 = 6/(2) 1b = 6/(2) b = 6 / (2)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so what is 6 / (2), 6 divided by 2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0perfect, so b = 3, so now you know the answer, do you see an answer where the second number is 3? (a, b) (a, 3)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0we can find a very easily also looking at the second equation we have a = b  2 so if i plug in b i get a = 3 2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you're welcome, please do some practice on this stuff or your future classes in college will be very difficult, visit khan academy and get help on here and other sites also

TheViper
 one year ago
Best ResponseYou've already chosen the best response.0nice to see too much long conversation in such a simple question
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