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Simplifying -2(x + 7) + 85 = 7x + -9(x + 3) Reorder the terms: -2(7 + x) + 85 = 7x + -9(x + 3) (7 * -2 + x * -2) + 85 = 7x + -9(x + 3) (-14 + -2x) + 85 = 7x + -9(x + 3) Reorder the terms: -14 + 85 + -2x = 7x + -9(x + 3) Combine like terms: -14 + 85 = 71 71 + -2x = 7x + -9(x + 3) Reorder the terms: 71 + -2x = 7x + -9(3 + x) 71 + -2x = 7x + (3 * -9 + x * -9) 71 + -2x = 7x + (-27 + -9x) Reorder the terms: 71 + -2x = -27 + 7x + -9x Combine like terms: 7x + -9x = -2x 71 + -2x = -27 + -2x Add '2x' to each side of the equation. 71 + -2x + 2x = -27 + -2x + 2x Combine like terms: -2x + 2x = 0 71 + 0 = -27 + -2x + 2x 71 = -27 + -2x + 2x Combine like terms: -2x + 2x = 0 71 = -27 + 0 71 = -27 Solving 71 = -27 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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