Ответ:
x = -7
Объяснение:
(7x-10)-(10x-4) = 15
7x-10-10x+4 = 15
-3x = 15+10-4
-3x = 21
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Ответ:
x = -7
Объяснение:
(7x-10)-(10x-4) = 15
7x-10-10x+4 = 15
-3x = 15+10-4
-3x = 21
x = -7