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Simplifying 5x + 2(x + 1) = 7x + -5 Reorder the terms: 5x + 2(1 + x) = 7x + -5 5x + (1 * 2 + x * 2) = 7x + -5 5x + (2 + 2x) = 7x + -5 Reorder the terms: 2 + 5x + 2x = 7x + -5 Combine like terms: 5x + 2x = 7x 2 + 7x = 7x + -5 Reorder the terms: 2 + 7x = -5 + 7x Add '-7x' to each side of the equation. 2 + 7x + -7x = -5 + 7x + -7x Combine like terms: 7x + -7x = 0 2 + 0 = -5 + 7x + -7x 2 = -5 + 7x + -7x Combine like terms: 7x + -7x = 0 2 = -5 + 0 2 = -5 Solving 2 = -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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