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2014-08-22T15:16:42-03:00
-3x+10=2x+8+1
-3x+10=2x+9
-3x+10-2x-9=0
-5x+1=0
-5x=-1
5x=1
x=1/5
1 4 1
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2014-08-22T15:18:58-03:00
- 3x + 10 = 2x + 8 + 1
- 3x - 2x = 8 + 1 - 10
- 5x = - 1 . (- 1)
5x = 1
x = 1/5
1 5 1