7-x+8-4x=10-x+3+4x x=
7-x+8-4x=10-x+3+4x-x-4x+x-4x=3+10-7-8 -8x=-2 x=2\8 x=1\4
7-x+8-4x=10-x+3+4x -8x=10-7-8+3 -8x=-2 x= -2/(-8) x=0.25