(х-16)*9=126 28*(х+5)=224 (х+76):7=15 144:(х-3)=36 21*(у-8)=84 (х+67):18=4

Question

(х-16)*9=126
28*(х+5)=224
(х+76):7=15
144:(х-3)=36
21*(у-8)=84
(х+67):18=4

Answer 1

1) 28x+140=224
    28x=84
    x=3
2) x+76=105
    x=29
3) x-3=4
    x=7
4) y-8=4
    y=12
5) x+67=72
    x=5

Answer 2

9x-144=126
9x=126+144
9x=270
x=270:9
x=30

28x+140=224
28x=224-140
28x=84
x=84:28
x=3