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7x - 9x = -2x
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9x-4 = 7x+8 9x-7x = 8+4 2x = 12 x = 6
7x-4=9x+10-14=2xx=-7
2x+3=9x 3=9x-2x 3=7x x=3/7
10 + 9x
(7x + 5)(x - 2)