-12x
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(2x - 10) + 7 = 52x - 3 = 52x = 8x = 4
2x - 3 = 2x - 52x = 2x - 22x - 2x = -20 =/= -2Zero is not equal to -2 so the answer is no solution.
2x - 2y8 is an expression. It is not an equation and so cannot have a solution.
2x + 4 is an expression, not an equation. There can be no solution set for an expression.
If you mean: -2x+8+20 then it can be simplified to 28-2x