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dilber6a
@dilber6a
August 2022
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решите пожалуйста срочное
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piksaeva85znayka
А) -4х-8×(9-2х)=-4х-72+16х=12х-72=12×(х-6)
б)1/3×(12-21у)+3у=4-7у+3у=4-4у=4×(1-4у)
в)6×(3x-2)+4×(5x-1)=18х-12+20х-4=38х-16=2×(19х-8)
г)-7×(3-4с)+14×(5+2с)=-21+28с+70+28с=56с+49=7×(8с+7)
д)-6×(8а-2b)+(3a-7b)×(-0.2)=-48a+12b-0.6a+1.4b=13.4b-48.6a
е)3×(21х-у)-28×(2х-3у)=63х-3у-56х+25у=22у+7х
ж)4×(8t+7)-16×(2t-3)=32t+28-32t+48=76
з)7×(4х-3)+(8-5х)=28х-21+8-5х=23х-13
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Thanks 1
dilber6a
огромное спс
piksaeva85znayka
не за что)
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Answers & Comments
б)1/3×(12-21у)+3у=4-7у+3у=4-4у=4×(1-4у)
в)6×(3x-2)+4×(5x-1)=18х-12+20х-4=38х-16=2×(19х-8)
г)-7×(3-4с)+14×(5+2с)=-21+28с+70+28с=56с+49=7×(8с+7)
д)-6×(8а-2b)+(3a-7b)×(-0.2)=-48a+12b-0.6a+1.4b=13.4b-48.6a
е)3×(21х-у)-28×(2х-3у)=63х-3у-56х+25у=22у+7х
ж)4×(8t+7)-16×(2t-3)=32t+28-32t+48=76
з)7×(4х-3)+(8-5х)=28х-21+8-5х=23х-13