Question

solve by the elimination method.

9a + 5b = 12
-9a+ b = 24

Answer 1

add the 2 equations, what u get ?

Answer 2

0+6b= 36
b=...?

Answer 3

oh nevermind. I just had -6 instead of 6 because I was getting confused when I had to plug that number back in. Thanks

Answer 4

but did u get b=6.. ?

Answer 5

and a=..?

Answer 6

yes and then I have 9a+6=12 to find out a

Answer 7

* 9a+5*6 =12

Answer 8

there is a 5 in 1st equation...

Answer 9

a=2

Answer 10

so (6,2)

Answer 11

i get a=-2

Answer 12

Thanks so much, I have always struggled with math :/

Answer 13

its (6,-2)

Answer 14

Yes sorry I meant to add - sign

Answer 15

then , you are correct.

Answer 16

also,
\(\huge \color{red}{\text{Welcome to Open Study}}\ddot\smile\)

Answer 17

Thanks again!

Answer 18

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