Ответ:
1) 5(-4x + 0,6) + 17,5х -0,5 = -20х + 3 + 17.5х - 0.5 = -2.5х + 2.5
2) -2.5 × 0.8 + 2.5 = 0.5
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Ответ:
1) 5(-4x + 0,6) + 17,5х -0,5 = -20х + 3 + 17.5х - 0.5 = -2.5х + 2.5
2) -2.5 × 0.8 + 2.5 = 0.5