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Simplifying -5(4x + 3) = -20x + 15 Reorder the terms: -5(3 + 4x) = -20x + 15 (3 * -5 + 4x * -5) = -20x + 15 (-15 + -20x) = -20x + 15 Reorder the terms: -15 + -20x = 15 + -20x Add '20x' to each side of the equation. -15 + -20x + 20x = 15 + -20x + 20x Combine like terms: -20x + 20x = 0 -15 + 0 = 15 + -20x + 20x -15 = 15 + -20x + 20x Combine like terms: -20x + 20x = 0 -15 = 15 + 0 -15 = 15 Solving -15 = 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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