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Simplifying (x + -4) + (52 + -1x) = 87 Reorder the terms: (-4 + x) + (52 + -1x) = 87 Remove parenthesis around (-4 + x) -4 + x + (52 + -1x) = 87 Remove parenthesis around (52 + -1x) -4 + x + 52 + -1x = 87 Reorder the terms: -4 + 52 + x + -1x = 87 Combine like terms: -4 + 52 = 48 48 + x + -1x = 87 Combine like terms: x + -1x = 0 48 + 0 = 87 48 = 87 Solving 48 = 87 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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