320-(4x+120):5=40-6 320-(x4+120)=40*6:5 320-(4x+120)=48 4x+120=320-48 4x+120=272 4x=272-120 4x=152 x=152:4 x=38
320-(4x+120):5=40-6 320-(x4+120)=40*6:5 320-(4x+120)=48 4x+120=320-48 4x+120=272 4x=272-120 4x=152 x=152:4 x=38