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Simplifying 12x + -7 + 5x = 8(2x + 1) + x + -8 Reorder the terms: -7 + 12x + 5x = 8(2x + 1) + x + -8 Combine like terms: 12x + 5x = 17x -7 + 17x = 8(2x + 1) + x + -8 Reorder the terms: -7 + 17x = 8(1 + 2x) + x + -8 -7 + 17x = (1 * 8 + 2x * 8) + x + -8 -7 + 17x = (8 + 16x) + x + -8 Reorder the terms: -7 + 17x = 8 + -8 + 16x + x Combine like terms: 8 + -8 = 0 -7 + 17x = 0 + 16x + x -7 + 17x = 16x + x Combine like terms: 16x + x = 17x -7 + 17x = 17x Add '-17x' to each side of the equation. -7 + 17x + -17x = 17x + -17x Combine like terms: 17x + -17x = 0 -7 + 0 = 17x + -17x -7 = 17x + -17x Combine like terms: 17x + -17x = 0 -7 = 0 Solving -7 = 0 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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