Преобразуйте выражение в тождественно равное выражение:
3(a+4)+4(a-3)
2(b+7)-3(b+1)
8(c-3)+5(c+4)
2.4(d+1)-0.6(4d-3)
3(a+4)+4(a-3)
2(b+7)-3(b+1)
8(c-3)+5(c+4)
2.4(d+1)-0.6(4d-3)
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3(a+4)+4(a-3)=3а+12+4а-12=7а2(b+7)-3(b+1)=2b+14-3b-3=-b+11
8(c-3)+5(c+4)=8c-24+5c+20=13c-4
2.4(d+1)-0.6(4d-3)=2,4d+2,4-2,4d+1,8=4,2