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

x – y = 7
x = y + 3

A.
x – (y + 3) = 7

B.
x = (7 – x) + 3

C.
x – y = y + 3

D.
(y + 3) – y = 7

Question

Which equation shows the substitution method being used to solve the system of linear equations? 
 
x – y = 7 
x = y + 3
 
 A.
x – (y + 3) = 7
 
 B.
x = (7 – x) + 3
 
 C.
x – y = y + 3
 
 D.
(y + 3) – y = 7

anonymous · Answer

@Angel_Bear19

freckles · Answer

which of the choices replaces the x in the first equation with (y+3)

anonymous · Answer

I have no clue... But look like Freckles can help you (:

anonymous · Answer

A

anonymous · Answer

K thanks anyway @Angel_Bear19

anonymous · Answer

you really help me out

freckles · Answer

we have x-y=7
if we replace x with (y+3) what do we have

anonymous · Answer

are you asking me what i think the answer would be?

freckles · Answer

I'm asking you to replace x with (y+3)
in the equation x-y=7

freckles · Answer

If you can do that, that will be the answer.

freckles · Answer

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