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Simplifying 5x + -11 = 5x + 21 Reorder the terms: -11 + 5x = 5x + 21 Reorder the terms: -11 + 5x = 21 + 5x Add '-5x' to each side of the equation. -11 + 5x + -5x = 21 + 5x + -5x Combine like terms: 5x + -5x = 0 -11 + 0 = 21 + 5x + -5x -11 = 21 + 5x + -5x Combine like terms: 5x + -5x = 0 -11 = 21 + 0 -11 = 21 Solving -11 = 21 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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