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Simplifying 26x + -9 + -17x + 2 = 21x + -9 + -12x + 11 Reorder the terms: -9 + 2 + 26x + -17x = 21x + -9 + -12x + 11 Combine like terms: -9 + 2 = -7 -7 + 26x + -17x = 21x + -9 + -12x + 11 Combine like terms: 26x + -17x = 9x -7 + 9x = 21x + -9 + -12x + 11 Reorder the terms: -7 + 9x = -9 + 11 + 21x + -12x Combine like terms: -9 + 11 = 2 -7 + 9x = 2 + 21x + -12x Combine like terms: 21x + -12x = 9x -7 + 9x = 2 + 9x Add '-9x' to each side of the equation. -7 + 9x + -9x = 2 + 9x + -9x Combine like terms: 9x + -9x = 0 -7 + 0 = 2 + 9x + -9x -7 = 2 + 9x + -9x Combine like terms: 9x + -9x = 0 -7 = 2 + 0 -7 = 2 Solving -7 = 2 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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