Ответ:
-7x-63+18 = -9x-99-14
-7x-45 = - 9x-113
-7x+9x = - 113+45
2x = - 68
x = - 34
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Ответ:
-7x-63+18 = -9x-99-14
-7x-45 = - 9x-113
-7x+9x = - 113+45
2x = - 68
x = - 34