renan-mendona
renan-mendona
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01 - 9 + 2(5x-4) = 2 9 + 10x - 8 = 2 10x + 1 = 2 10x = 1 x = 1 / 10 x = 0,1
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13 (2x - 3) -5 (2 - x) = 5 (-3 + 6) 26x - 39 - 10 + 5x = -15 + 30 31x = 49 + 15 x = 64/31
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13 (2x - 3) -5 (2 - x) = 5 (-3 + 6) 26x - 39 - 10 + 5x = -15 + 30 31x = 49 + 15 x = 64/31