{y=2x+1 4x+y=13

y=2x+1 4x+y=13 2x+1=13-4x 6x=12 x=2 y=5

y=2x+1 y=-4x+13 2x+1=13-4x 6x=12 x=2

y=2x+1 4x+y=13 y=2x+1 4x+2x+1=13 y=2x+1 6x+1=13 y=2x+1 6x=12 y=2x+1 x=2 y=2*2+1 x=2 y=5 x=2