8(7х - х) = 6(19х - 11)
8 * 6х = 114х - 66
48х - 114х = - 66
-66х = - 66
х = 1
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2(7х - 3) = 6(5х + 1)
14х - 6 = 30х + 6
14х - 30х = 6 + 6
-16х = 12
х = = = -0,75
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5х + 11 = 7х + 31
5х - 7х = 31 - 11
-2х = 20
х = -10