Question

Help!

Answer 1

question?

Answer 2

you substitute the value of x from the second equation into the first one

Answer 3

so what does x = in the second equation?

Answer 4

@kevindragonlord ?

Answer 5

y + 3 but what is y I don't know

Answer 6

It would be C because the second equation is x=y+3 so replacing x in the first equation with y+3 will give you (y+3)-y=7.

Answer 7

ok so since x = y + 3
you can put that instead of x in the first equation

Answer 8

so what will that give you?

Answer 9

Simple way:
Substitution means to substitute
X value is given
take X equals and plug it in the opposite equation

Answer 10

Thank you everyone

Answer 11

yw

Answer 12

\[(Plug~the~X~value~here)y=7\]