Question

Which equation shows the substitution method being used to solve the system of linear equations?

x – y = 7
x = y + 3

A.
(y + 3) – y = 7

B.
x – (y + 3) = 7

C.
x – y = y + 3

D.
x = (7 – x) + 3

Answer 1

ok well since X is already isolated you want to plug it in the equation

Answer 2

the top one

Answer 3

which one is it?

Answer 4

The answer is A

Answer 5

@Iramos1998 please dont give direct answers

Answer 6

You did... When you said "the top one"

Answer 7

i meant the top equation

Answer 8

its a because it has to be (y+3)and then -y=7

Answer 9

thanks dow

Answer 10

Then you should be conscientious of how you word your replies.