7⋅(8+x)−4x=4x−65
56+8х-4х=4х-65
8х-4х-4х=-65-56
х=-121
Ответ: 121.
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7⋅(8+x)−4x=4x−65
56+8х-4х=4х-65
8х-4х-4х=-65-56
х=-121
Ответ: 121.