you were doing fine until
"...9x/9 = 18/9
y=2"
You were solving for x and then you said y = 2?
Should it not be x = 2?
I need help with a problem.
I worked it out but I think I'm wrong. Can some one please help solve this correctly?
Use substitution to solve: 2x + y = 7
5x - 2y = 4
My answer:
y = 7 - 2x
7x - (7-2x) = 11
7x - 7 + 2x = 11
2 7
9x 18
9x/9 = 18/9
y=2
5x - 2y = 4
5x-2(2)=4
this is where I'm lost.
Can someone help me.