Ответ:
Пошаговое объяснение:
-(2 1/4-5.1a÷8 1/2) - 2/3 * 4.5(2.5+0.2a) = -(2 1/4-0.6a)-2/3 * 4.5(2.5+0.2a) = -2 1/4 + 0.6a -3(2.5+0.2a) = -2 1/4 + 0.6a-7.5-0.6a= -2 1/4 - 7.5 = -9/4 - 7.5 = -2.25-7.5 = -9.75
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Ответ:
Пошаговое объяснение:
-(2 1/4-5.1a÷8 1/2) - 2/3 * 4.5(2.5+0.2a) = -(2 1/4-0.6a)-2/3 * 4.5(2.5+0.2a) = -2 1/4 + 0.6a -3(2.5+0.2a) = -2 1/4 + 0.6a-7.5-0.6a= -2 1/4 - 7.5 = -9/4 - 7.5 = -2.25-7.5 = -9.75