A, X x 5 - 112 - 236 = 633
X x 5 - 112 = 633 + 236
X x 5 - 112 = 869
X x 5 = 869 + 112
X x 5 = 981
X = 981 : 5
X =196.2
B, ( x :12 ) x 7 + 8 = 36
( x : 12 ) x 7 = 36 - 8
( x : 12 ) x 7 = 28
x : 12 = 28 : 7
x : 12 = 4
x = 4 x 12
x = 48
A, X x 5 - 112 - 236 = 633 X x 5 - 112
= 633 + 236 X x 5 - 112
= 869 X x 5 = 869 + 112 X x 5
= 981 X = 981 : 5 X =196.2
B, ( x :12 ) x 7 + 8 = 36 ( x : 12 ) x 7 = 36 - 8 ( x : 12 ) x 7 = 28 x : 12 = 28 : 7 x : 12 = 4 x = 4 x 12 x = 48