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4х-7=7(3х+2)+13
17-5(2х+7)=4(5х-3)
3х-5(6х-7)=5-6(2х+5)
-3(х+12)-2(х-18)=-5х
4х=6+2(4х-1)
4х-7=7(3х+2)+13
17-5(2х+7)=4(5х-3)
3х-5(6х-7)=5-6(2х+5)
-3(х+12)-2(х-18)=-5х
4х=6+2(4х-1)
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4х-7=21х+14+13
4х-21х=7+14+13
-17х=34
х=-2
2)17-5(2х+7)=4(5х-3)
17-10х-35=20х-12
-10х-20х=-17+35-12
-30х=6
х=1/5