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Simplifying 22x + -7 + -12x + 4 = 21x + -7 + -11x + 12 Reorder the terms: -7 + 4 + 22x + -12x = 21x + -7 + -11x + 12 Combine like terms: -7 + 4 = -3 -3 + 22x + -12x = 21x + -7 + -11x + 12 Combine like terms: 22x + -12x = 10x -3 + 10x = 21x + -7 + -11x + 12 Reorder the terms: -3 + 10x = -7 + 12 + 21x + -11x Combine like terms: -7 + 12 = 5 -3 + 10x = 5 + 21x + -11x Combine like terms: 21x + -11x = 10x -3 + 10x = 5 + 10x Add '-10x' to each side of the equation. -3 + 10x + -10x = 5 + 10x + -10x Combine like terms: 10x + -10x = 0 -3 + 0 = 5 + 10x + -10x -3 = 5 + 10x + -10x Combine like terms: 10x + -10x = 0 -3 = 5 + 0 -3 = 5 Solving -3 = 5 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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