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Simplifying 4(2x + -5) = 8x + -7 Reorder the terms: 4(-5 + 2x) = 8x + -7 (-5 * 4 + 2x * 4) = 8x + -7 (-20 + 8x) = 8x + -7 Reorder the terms: -20 + 8x = -7 + 8x Add '-8x' to each side of the equation. -20 + 8x + -8x = -7 + 8x + -8x Combine like terms: 8x + -8x = 0 -20 + 0 = -7 + 8x + -8x -20 = -7 + 8x + -8x Combine like terms: 8x + -8x = 0 -20 = -7 + 0 -20 = -7 Solving -20 = -7 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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