1)3(a+4)+4(a-3) 2)2(b+7)-3(b+1) 3)8(c-3)+5(c+4) 4)2,4(d+1)-0,6(4d-3) промогите Пожалуиста. Created by aruberdaliva. matematika-ru

1)3(a+4)+4(a-3) 2)2(b+7)-3(b+1) 3)8(c-3)+5(c+4) 4)2,4(d+1)-0,6(4d-3) промогите П...

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1)3(a+4)+4(a-3)
2)2(b+7)-3(b+1)
3)8(c-3)+5(c+4)
4)2,4(d+1)-0,6(4d-3)
промогите Пожалуиста

VelPhillips 1)3(a+4)+4(a-3)=3а+12+4а-12=7а
2)2(b+7)-3(b+1)=2b+14-3b-3=-b+11
3)8(c-3)+5(c+4)=8c-24+5c+20=13c-4
4)2,4(d+1)-0,6(4d-3)=2,4d+2,4-2,4d+1,8=4,2

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aruberdaliva Спасибо

love67 2,4+1,8=4,2 последнее

polinka200335

Verified answer

3(a+4)+4(a-3)=3a+12+4a-12=7a
2(b+7)-3(b+1)=2b+14-3b-3=11-b
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

5 votes Thanks 11

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