Ответы на вопрос:
10-3(5х-1.5)= 2.5- 5х 2(3х-4)=5х-3(х+1) 10-15х+4.5= 2.5 - 5х 6х-8=5х-3х-3 -15х+14.5=2.5-5х 6х-8=2х-3 -15х+5х=2.5-14.5 6х-2х=-3+8 -10х=12 4х=5 х= 12: (-10) х=1.25 х=1.2
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