Ответ:
Пошаговое объяснение:
a)
1 + 105 - 21x - 2x - 48 = -170 + 34x + 18 - 36x
58 - 23x = -152 - 2x
23x - 2x = 58 + 152
21x = 210
x = 210 : 21
x = 10
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б)
-64 - 32x + 84 - 36x = 50x + 150 - 15 + x
20 - 68x = 51x + 135
51x + 68x = 20 - 135
119x = -115
x = -115 : 119
x = -115/119
-----------------------
в)
96x - 96 - 7x + 64 = 76 - 38x + 51 + 6x + 83
89x - 32 = 210 - 32x
89x + 32x = 210 + 32
121x = 242
x = 242 : 121
x = 2
--------------------
г)
-10x + 18 + 76 + 57x = 9 - 21x - 147 + 72 - 12x
47x + 94 = -66 - 33x
47x + 33x = -66 - 94
80x = -160
x = -160 : 80
x = -2