Пошаговое объяснение:
21(18+x)=714
18 + x = 714 : 21
18 + x = 34
x = 34 - 18
x = 16
16(4x-34)=608
4x - 34 = 608 : 16
4x - 34 = 38
4x = 38 + 34
4x = 72
x = 72 : 4
x = 18
12(152+19x)=2052
152 + 19x = 2052 : 12
152 + 19x = 171
19x = 152 - 171
19x = - 19
x = - 19 : 19
x = - 1
(152x+32)*6=192
152x + 32 = 192 : 6
152x + 32 = 32
152x = 32 - 32
152x = 0
x = 0
Пошаговое объяснение:
21(18+x)=714
18 + x = 714 : 21
18 + x = 34
x = 34 - 18
x = 16
16(4x-34)=608
4x - 34 = 608 : 16
4x - 34 = 38
4x = 38 + 34
4x = 72
x = 72 : 4
x = 18
12(152+19x)=2052
152 + 19x = 2052 : 12
152 + 19x = 171
19x = 152 - 171
19x = - 19
x = - 19 : 19
x = - 1
(152x+32)*6=192
152x + 32 = 192 : 6
152x + 32 = 32
152x = 32 - 32
152x = 0
x = 0