1) (63-5x):а=6 при а=3
(63-5x):3 = 6
63-5x=18
5x=45
x=9
2) b:(38x-95)=7 при b=133
133:(38x-95) = 7
38x-95 = 19
38x = 114
x = 3
3) 15×(с-8x)=75 при с=53
15×(53-8x) = 75
53-8x = 5
48 = 8x
x = 6
4) (6x-d)×8=104 при d=29
(6x-29)×8 = 104
6x-29 = 13
6x = 42
x = 7