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Simplifying 2(5x + -10) = 10(x + -10) Reorder the terms: 2(-10 + 5x) = 10(x + -10) (-10 * 2 + 5x * 2) = 10(x + -10) (-20 + 10x) = 10(x + -10) Reorder the terms: -20 + 10x = 10(-10 + x) -20 + 10x = (-10 * 10 + x * 10) -20 + 10x = (-100 + 10x) Add '-10x' to each side of the equation. -20 + 10x + -10x = -100 + 10x + -10x Combine like terms: 10x + -10x = 0 -20 + 0 = -100 + 10x + -10x -20 = -100 + 10x + -10x Combine like terms: 10x + -10x = 0 -20 = -100 + 0 -20 = -100 Solving -20 = -100 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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