6х - 14 = 3х + 7
6х - 3х = 7 + 14
3х = 21
х = 21/3
х = 7
9 - 3х = 2х + 14
-3х -2х = 14 - 9
-5х = 5
х = 5/-5
х = -1
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6х - 14 = 3х + 7
6х - 3х = 7 + 14
3х = 21
х = 21/3
х = 7
9 - 3х = 2х + 14
-3х -2х = 14 - 9
-5х = 5
х = 5/-5
х = -1