Ответ:
5(6х-7) = 4(3х+7)
30х-35 = 12х+28
30х-12х = 35+28
18х = 63
х = 63÷18
х = 3,5
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Ответ:
5(6х-7) = 4(3х+7)
30х-35 = 12х+28
30х-12х = 35+28
18х = 63
х = 63÷18
х = 3,5