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Simplifying 7x + -8 + 1 = 8 + -9 + 7x Reorder the terms: -8 + 1 + 7x = 8 + -9 + 7x Combine like terms: -8 + 1 = -7 -7 + 7x = 8 + -9 + 7x Combine like terms: 8 + -9 = -1 -7 + 7x = -1 + 7x Add '-7x' to each side of the equation. -7 + 7x + -7x = -1 + 7x + -7x Combine like terms: 7x + -7x = 0 -7 + 0 = -1 + 7x + -7x -7 = -1 + 7x + -7x Combine like terms: 7x + -7x = 0 -7 = -1 + 0 -7 = -1 Solving -7 = -1 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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