1) 9x+50=86 2) 120:(x-19) =6 3) ( y +50) :14=4
9x+50=86 9x=86-50 9x=36 x=36/9 x=4 __________ 120:(x-19) =6 120=6(x-19) 120=6x-96 216=6x 6x=216 x=216/6 x=39 ____________ (y +50) :14=4 y+50=14*4 y+50=56 y=56-50 y=6