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Simplifying 4(5x + -16) = 20(x + -4) Reorder the terms: 4(-16 + 5x) = 20(x + -4) (-16 * 4 + 5x * 4) = 20(x + -4) (-64 + 20x) = 20(x + -4) Reorder the terms: -64 + 20x = 20(-4 + x) -64 + 20x = (-4 * 20 + x * 20) -64 + 20x = (-80 + 20x) Add '-20x' to each side of the equation. -64 + 20x + -20x = -80 + 20x + -20x Combine like terms: 20x + -20x = 0 -64 + 0 = -80 + 20x + -20x -64 = -80 + 20x + -20x Combine like terms: 20x + -20x = 0 -64 = -80 + 0 -64 = -80 Solving -64 = -80 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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