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Simplifying 4x + 11 = 4x + 15 Reorder the terms: 11 + 4x = 4x + 15 Reorder the terms: 11 + 4x = 15 + 4x Add '-4x' to each side of the equation. 11 + 4x + -4x = 15 + 4x + -4x Combine like terms: 4x + -4x = 0 11 + 0 = 15 + 4x + -4x 11 = 15 + 4x + -4x Combine like terms: 4x + -4x = 0 11 = 15 + 0 11 = 15 Solving 11 = 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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