Question

Solve by substitutiony = 2x + 1y = 4x-1

Answer 1

1. y=2x+1

2. y=4x-1

We need to substitute 1 in 2:

2x+1=4x-1

1+1=4x-2x

2=2x

x=2/2

x=1

Now substituing x in 1:

y=2(1)+1

y=3