Question

1) 9x+50=86 2) 120:(x-19) =6 3) ( y +50) :14=4

Answer 1

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