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Simplifying 4x + -2(x + -7) = 2(x + 1) + 9 Reorder the terms: 4x + -2(-7 + x) = 2(x + 1) + 9 4x + (-7 * -2 + x * -2) = 2(x + 1) + 9 4x + (14 + -2x) = 2(x + 1) + 9 Reorder the terms: 14 + 4x + -2x = 2(x + 1) + 9 Combine like terms: 4x + -2x = 2x 14 + 2x = 2(x + 1) + 9 Reorder the terms: 14 + 2x = 2(1 + x) + 9 14 + 2x = (1 * 2 + x * 2) + 9 14 + 2x = (2 + 2x) + 9 Reorder the terms: 14 + 2x = 2 + 9 + 2x Combine like terms: 2 + 9 = 11 14 + 2x = 11 + 2x Add '-2x' to each side of the equation. 14 + 2x + -2x = 11 + 2x + -2x Combine like terms: 2x + -2x = 0 14 + 0 = 11 + 2x + -2x 14 = 11 + 2x + -2x Combine like terms: 2x + -2x = 0 14 = 11 + 0 14 = 11 Solving 14 = 11 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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