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Simplifying 7(x + -8) = 7x + 42 Reorder the terms: 7(-8 + x) = 7x + 42 (-8 * 7 + x * 7) = 7x + 42 (-56 + 7x) = 7x + 42 Reorder the terms: -56 + 7x = 42 + 7x Add '-7x' to each side of the equation. -56 + 7x + -7x = 42 + 7x + -7x Combine like terms: 7x + -7x = 0 -56 + 0 = 42 + 7x + -7x -56 = 42 + 7x + -7x Combine like terms: 7x + -7x = 0 -56 = 42 + 0 -56 = 42 Solving -56 = 42 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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