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Simplifying 5(2x + -1) + -1(10x + -7) = -8 Reorder the terms: 5(-1 + 2x) + -1(10x + -7) = -8 (-1 * 5 + 2x * 5) + -1(10x + -7) = -8 (-5 + 10x) + -1(10x + -7) = -8 Reorder the terms: -5 + 10x + -1(-7 + 10x) = -8 -5 + 10x + (-7 * -1 + 10x * -1) = -8 -5 + 10x + (7 + -10x) = -8 Reorder the terms: -5 + 7 + 10x + -10x = -8 Combine like terms: -5 + 7 = 2 2 + 10x + -10x = -8 Combine like terms: 10x + -10x = 0 2 + 0 = -8 2 = -8 Solving 2 = -8 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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