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Simplifying 4x + -2(x + -9) = 2(x + 1) + 8 Reorder the terms: 4x + -2(-9 + x) = 2(x + 1) + 8 4x + (-9 * -2 + x * -2) = 2(x + 1) + 8 4x + (18 + -2x) = 2(x + 1) + 8 Reorder the terms: 18 + 4x + -2x = 2(x + 1) + 8 Combine like terms: 4x + -2x = 2x 18 + 2x = 2(x + 1) + 8 Reorder the terms: 18 + 2x = 2(1 + x) + 8 18 + 2x = (1 * 2 + x * 2) + 8 18 + 2x = (2 + 2x) + 8 Reorder the terms: 18 + 2x = 2 + 8 + 2x Combine like terms: 2 + 8 = 10 18 + 2x = 10 + 2x Add '-2x' to each side of the equation. 18 + 2x + -2x = 10 + 2x + -2x Combine like terms: 2x + -2x = 0 18 + 0 = 10 + 2x + -2x 18 = 10 + 2x + -2x Combine like terms: 2x + -2x = 0 18 = 10 + 0 18 = 10 Solving 18 = 10 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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