(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

Comments

(х-16)*9=126х-16=126:9х-16=14х=16+14х=3028*(х+5)=224х+5=224:28х+5=8х=8-5х=3(х+76):7=15х+76=15*7х+76=105х=105-76х=29144:(х-3)=36х-3=144:36х-3=4х=4+3х=7(х+67):18=4х+67=18*4х+67=72х=72-67х=5

Answer 1

X-16)*9=126
x-16=126:9
x-16=14
x=14+16
x=30
28*(x+5)=224
x+5=224:28
x+5=8
x=8-5
x=3
(x+76):7=15
x+76=15*7
x+76=105
x=105-76
x=29
144:(x-3)=36
x-3=144:36
x-3=4
x=4+3
x=7
21*(y-8)=84
y-8=84:21
y-8=4
y=8+4
y=12
(x+67):18=4
x+67=4*18
x+67=72
x=72-67
x=5