Решите уравнения:1)3х+5=8х-152)5(х+3)= 27+3х3)3у+(4-2у)=64)5у-(13+у)=у+145)3(2х-4)-2(х+3)=-26)4у-3=2(7-у)+1Желательно полное решение.Спасибки заранее*
3х+5 = 8х -15,
3х-8х = -15-5,
-5х = -20,
х = 4.
5х+15 = 27+3х,
5х - 3х = 27- 15,
2х = 12,
х = 6.
3у+(4-2у)=6,
3у - 2у = 6-4,
у=2.
5у-(13+у)=у+14,
5у-13-у=у+14,
5у-у-у=14+13,
3у=27,
у=9.
3(2х-4)-2(х+3)=-2,
6х-12-2х-6=-2,
6х-2х=-2+6+12,
4х=16,
х=4.
4у-3=2(7-у)+1,
4у-3=14-2у+1,
4у+2у=14+1+3,
6у=18,
у=3.
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Answers & Comments
3х+5 = 8х -15,
3х-8х = -15-5,
-5х = -20,
х = 4.
5х+15 = 27+3х,
5х - 3х = 27- 15,
2х = 12,
х = 6.
3у+(4-2у)=6,
3у - 2у = 6-4,
у=2.
5у-(13+у)=у+14,
5у-13-у=у+14,
5у-у-у=14+13,
3у=27,
у=9.
3(2х-4)-2(х+3)=-2,
6х-12-2х-6=-2,
6х-2х=-2+6+12,
4х=16,
х=4.
4у-3=2(7-у)+1,
4у-3=14-2у+1,
4у+2у=14+1+3,
6у=18,
у=3.