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Simplifying 9(x + 2) + -7 = 6x + 3(5 + x) Reorder the terms: 9(2 + x) + -7 = 6x + 3(5 + x) (2 * 9 + x * 9) + -7 = 6x + 3(5 + x) (18 + 9x) + -7 = 6x + 3(5 + x) Reorder the terms: 18 + -7 + 9x = 6x + 3(5 + x) Combine like terms: 18 + -7 = 11 11 + 9x = 6x + 3(5 + x) 11 + 9x = 6x + (5 * 3 + x * 3) 11 + 9x = 6x + (15 + 3x) Reorder the terms: 11 + 9x = 15 + 6x + 3x Combine like terms: 6x + 3x = 9x 11 + 9x = 15 + 9x Add '-9x' to each side of the equation. 11 + 9x + -9x = 15 + 9x + -9x Combine like terms: 9x + -9x = 0 11 + 0 = 15 + 9x + -9x 11 = 15 + 9x + -9x Combine like terms: 9x + -9x = 0 11 = 15 + 0 11 = 15 Solving 11 = 15 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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