Решите уравнения (срочно!)
1)-13+3(4х-9) = 2(3х-8)
2)2(х-2)=3=3(1-х)
3)23+3(6-у) = 2(7-2у)
1)-13+3(4х-9) = 2(3х-8)
2)2(х-2)=3=3(1-х)
3)23+3(6-у) = 2(7-2у)
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Answers & Comments
-13+12х-27= 6х-16
-13х+12х-6х = -16+27
-7х = 11
х = - 11/7
х= - 1 4/7
2)пример неправильно написан.
3)23+3(6-у) = 2(7-2у)
23+18-3у = 14-4у
-3у +4у = 14-18-23
1у = -27
у = -27:1
у = -27