Seudónimo
Seudónimo
25-08-2016
Mathematics
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9x + 26 + 7x - 17 = 2x + (-3x) + 5x
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texaschic101
texaschic101
25-08-2016
9x + 26 + 7x - 17 = 2x + (-3x) + 5x =
16x + 9 = 2x - 3x + 5x =
16x + 9 = 4x
9 = 4x - 16x
9 = - 12x
-9/12 = x
- 3/4 = x
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