Question

Solve the system.
y = 4x + 12 and y = -2x + 6

(0, 3)
(-1, 8)
(12, 6)
no solution
infinitely many solutions

ok so what i know is im suppose to write it like this right? 4x+12=-2x+6 what next?

Answer 1

Yes, you're right. Solve for x.

Answer 2

4x+12/4=-2x+6/4 would it be like that next? im not sure

Answer 3

No. That will make this complicated.
bring variable on one side of the equation.

Answer 4

ok one sec

Answer 5

6x=-6?

Answer 6

Yes. Now we're going to do next?

Answer 7

6x/6=-6/6
x=-1?

Answer 8

what?

Answer 9

sry.. no solution

Answer 10

hu?

Answer 11

Correct!
Now insert this value in equation 1 or 2 to get the value of y.

Answer 12

y=4(-1)+12
y=-4+12
y=8

Answer 13

so -1,8 ?