Ответ:
1) 7(х+2)=-14
7х+14=-14
7х=-28
х=-4
2) 8у=2(5-у)
8у=10-2у
10у=10
у=1
3) 2(3х-4)=4(х-3)
6х-8=4х-12
2х=-4
х=-2
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Ответ:
1) 7(х+2)=-14
7х+14=-14
7х=-28
х=-4
2) 8у=2(5-у)
8у=10-2у
10у=10
у=1
3) 2(3х-4)=4(х-3)
6х-8=4х-12
2х=-4
х=-2