Ответ:
7*x-(x+8)=7x-x-8=6x-8.
x=-4.
6*(-4)-8=-24-8=-32.
-32.
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Ответ:
7*x-(x+8)=7x-x-8=6x-8.
x=-4.
6*(-4)-8=-24-8=-32.
-32.