No way to answer - need another variable.
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3x - 3x -1 + 2x -1 = 0 0 - 1 + 2x - 1 = 0 2x - 2 = 0 2x = 2 x = 1
(2x x 3x) x 2 = 12x (2x times 3x times 2)
5
10 + 2(x - 1) + 7 x 3x + 1 =10 + 2x - 2 + (7 x 3x) + 1 =10 + 2x - 2 + 21x + 1 =2x + 21x + 10 - 2 + 1 =23x + 9
3x - 2 = 2x + 4 3x - 2x = 4 + 2 x = 6