1. спрости вираз.
a) 3-2(x - 5) =
б) 4(x-7) - 2(x + 3) =
в) 7(x - 1) - 7(2x - 4) =
г) x -(x − 2(x + 1)) =
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a) 3-2(x - 5) =
б) 4(x-7) - 2(x + 3) =
в) 7(x - 1) - 7(2x - 4) =
г) x -(x − 2(x + 1)) =
СРОЧНО ПЖЖЖЖ
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Ответ:
a)x=7.5
б)х=17
в)х=-5
г)х=-1