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Simplifying -7x + -2 + 1 = 15 + -7x Reorder the terms: -2 + 1 + -7x = 15 + -7x Combine like terms: -2 + 1 = -1 -1 + -7x = 15 + -7x Add '7x' to each side of the equation. -1 + -7x + 7x = 15 + -7x + 7x Combine like terms: -7x + 7x = 0 -1 + 0 = 15 + -7x + 7x -1 = 15 + -7x + 7x Combine like terms: -7x + 7x = 0 -1 = 15 + 0 -1 = 15 Solving -1 = 15 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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