4(-3-2у)-30 = 2(-3+2у)
-12-8у-30 = -6+4у
-8у-4у = -6+12+30
-12у = 36
у = -3
Ответ: -3
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4(-3-2у)-30 = 2(-3+2у)
-12-8у-30 = -6+4у
-8у-4у = -6+12+30
-12у = 36
у = -3
Ответ: -3