Question

SOLVING SYSTEMS USING SUBSTITUTION!!!! PLEASE HELP!

What are X and Y supposed to be? I'm not good at Algebra... I don't really understand substitution.

y=2x+6

3y-x+3=0

Answer 1

First, you turn one of the equations into slope intercept form

Answer 2

How do i do that though? Sorry, like I said I'm not good at algebra :P

Answer 3

Its okay. The slope intercept form is y=mx+b

y=2x+6
this equation is already in slope intercept

Answer 4

next you would plug in what you got for y into the second equation
3y-x+3=0

3(2x+6)-x+3=0 and solve for x

Answer 5

Oh... Okay that makes sense :)

Answer 6

Urgh...sorry The 2x is supposed to be -2x and for the answer I got X=3 and Y=0. Am I right?

Answer 7

x is right
to get y you plug in what you got for x into the other equation

Answer 8

y=2x+6
y=2(3)+6

Answer 9

Okay. Thanks so much! You really helped :)

Answer 10

anytime :)