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Simplifying 4x + (x + -2) = 5x + -20 Reorder the terms: 4x + (-2 + x) = 5x + -20 Remove parenthesis around (-2 + x) 4x + -2 + x = 5x + -20 Reorder the terms: -2 + 4x + x = 5x + -20 Combine like terms: 4x + x = 5x -2 + 5x = 5x + -20 Reorder the terms: -2 + 5x = -20 + 5x Add '-5x' to each side of the equation. -2 + 5x + -5x = -20 + 5x + -5x Combine like terms: 5x + -5x = 0 -2 + 0 = -20 + 5x + -5x -2 = -20 + 5x + -5x Combine like terms: 5x + -5x = 0 -2 = -20 + 0 -2 = -20 Solving -2 = -20 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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