79-80, refer to the figure below. 4x-6 79. Find the value of x. x y +18 12 *x+3 80. Solve for the value of y-

Answer:
4x-6=x
4x-x=6
3x=6
x=2
y+1=x+3
y+1=(2)+3
y+1=5
y=5-1
y=4