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2014-08-25T16:00:29+03:00
8 - 6 + 12x = 3x -16
12x - 3x = - 8 + 6 - 16
9x = - 18
x = - 18/9
x = - 2
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2014-08-25T16:00:40+03:00
8-3 (2-4x)=3x-16
8-6+12x=3x-16
12x-3x=-16-8+6
9x=-24+6
9x=-18
x=-18:9
x=-2