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Simplifying 5x + -7x + -7 = -2x + 5 + -7 Reorder the terms: -7 + 5x + -7x = -2x + 5 + -7 Combine like terms: 5x + -7x = -2x -7 + -2x = -2x + 5 + -7 Reorder the terms: -7 + -2x = 5 + -7 + -2x Combine like terms: 5 + -7 = -2 -7 + -2x = -2 + -2x Add '2x' to each side of the equation. -7 + -2x + 2x = -2 + -2x + 2x Combine like terms: -2x + 2x = 0 -7 + 0 = -2 + -2x + 2x -7 = -2 + -2x + 2x Combine like terms: -2x + 2x = 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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