Respuesta :

combine the like terms on each side (so just the two x’s need to be added together), then subtract the 2y from 4y & solve from there

3x+4y+3x=12+2y-8

    -2y            -2y

3x+2y+3x=12+-8

3x+3x=6x

6x+2y=12+-8

6x+2y=4

6x/4=1.5x

2y/4=0.5y