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Simplifying (7x + 2) + (18 + -7x) = 0 Reorder the terms: (2 + 7x) + (18 + -7x) = 0 Remove parenthesis around (2 + 7x) 2 + 7x + (18 + -7x) = 0 Remove parenthesis around (18 + -7x) 2 + 7x + 18 + -7x = 0 Reorder the terms: 2 + 18 + 7x + -7x = 0 Combine like terms: 2 + 18 = 20 20 + 7x + -7x = 0 Combine like terms: 7x + -7x = 0 20 + 0 = 0 20 = 0 Solving 20 = 0 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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