Question

Solve the system of linear equations by graphing.
y=-4x+3
4x-2y=6

Answer 1

Substituting equation 1 in equation 2, we get:

4x-2(-4x+3)=6
4x+8x-6=6
4x+8x=6+6
12x=12
x=1

Replace x=1 in equation 1, we get:

y = -4(1)+3
y = -4+3
y=-1

Answer 2

x=1, y= -1

Explanation: