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2014-08-22T18:15:24-03:00
X+22=2x-10
x-2x=-10-22
-x=-32
x=32
2 5 2
2014-08-23T01:42:32-03:00
X + 22 = 2X - 10

X - 2X = - 10 - 22

- X = - 32 . ( - 1 )

X = 32