If you mean 9x+x then it is 10x when simplified
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Right, 3x-4x+9x-x1. 3x - x = 2x2. 9x-4x = 5x- 2x +5x = 7x
I suppose you mean, how do you factor it. 7x2 - 9x - 10 = (7x + 5)(x - 2).
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5*2+9x-2=0 so, going by BODMAS rule 10+9x-2=0 9x=-10+2 9x=-8 x=-8/9 I think!!
9x is the lowest common multiple. (9x * 1 = 9x) (x * 9 = 9x)