x - 4= 12
12 + 4 =16 entonces x es igual a 16
16-4 = 12
9x - 4 = 14 9(2)-4=14
18-4=14
14+4=18÷9 =2
x=2
-2x = -14
-2x ÷ -14= 7
-2(7) = 14
Espero y que te sirva
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x - 4= 12
12 + 4 =16 entonces x es igual a 16
16-4 = 12
9x - 4 = 14 9(2)-4=14
18-4=14
14+4=18÷9 =2
x=2
-2x = -14
-2x ÷ -14= 7
-2(7) = 14
Espero y que te sirva