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Simplifying x + -1 + x + -3 = 2(x + -3) + -2 Reorder the terms: -1 + -3 + x + x = 2(x + -3) + -2 Combine like terms: -1 + -3 = -4 -4 + x + x = 2(x + -3) + -2 Combine like terms: x + x = 2x -4 + 2x = 2(x + -3) + -2 Reorder the terms: -4 + 2x = 2(-3 + x) + -2 -4 + 2x = (-3 * 2 + x * 2) + -2 -4 + 2x = (-6 + 2x) + -2 Reorder the terms: -4 + 2x = -6 + -2 + 2x Combine like terms: -6 + -2 = -8 -4 + 2x = -8 + 2x Add '-2x' to each side of the equation. -4 + 2x + -2x = -8 + 2x + -2x Combine like terms: 2x + -2x = 0 -4 + 0 = -8 + 2x + -2x -4 = -8 + 2x + -2x Combine like terms: 2x + -2x = 0 -4 = -8 + 0 -4 = -8 Solving -4 = -8 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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