Question

5 x − 7 y = −8
−7 x + 2 y = −20

How to solve for x and y with substitution method

Answer 1

5x-7y=-8 isolate x
5x=7y-8

Answer 2

then?

Answer 3

it gives you x=7/5y-8/5

Answer 4

\[x=\frac{ 7y-8 }{ 5 }\]

Answer 5

yes that is correct

Answer 6

so that is x?

Answer 7

now sub in the other equation

Answer 8

yes, it is

Answer 9

not right answer

Answer 10

it doesn't give me a long enough response for the x value when i try to submit the answer . ive tried it many times

Answer 11

ok are you using math lab?

Answer 12

x=(7/5)y-(8/5)

Answer 13

try that one

Answer 14

are you looking for the solution

Answer 15

yes

Answer 16

not a long response but one number

Answer 17

x=4 y=4

Answer 18

how did you get that?

Answer 19

There are many ways to do this problem

Answer 20

I used my calculator

Answer 21

may i ask, what you did on the calculator?

Answer 22

i'll rate you best response if you explain yourself and not just tell me the answer, thank you.

Answer 23

I did explain it. I have to go now