Question

Solve the system by Substitution.
3x-y=-1
y= 2x-1

Answer 1

1.) Fill in y=2x-1 into the first equation
3x-(2x-1)=-1
3x-2x+1=-1
x+1=-1
x=-2

2.) Fill in x=-2 into y=2x-1
y=2(-2)-1
y=-4-1
y=-5

Your answer is (-2,-5) or x=-2 and y=-5

Answer 2

(-2,-5)...............