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Simplifying 50 = x + (x + -13) Reorder the terms: 50 = x + (-13 + x) Remove parenthesis around (-13 + x) 50 = x + -13 + x Reorder the terms: 50 = -13 + x + x Combine like terms: x + x = 2x 50 = -13 + 2x Solving 50 = -13 + 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. 50 + -2x = -13 + 2x + -2x Combine like terms: 2x + -2x = 0 50 + -2x = -13 + 0 50 + -2x = -13 Add '-50' to each side of the equation. 50 + -50 + -2x = -13 + -50 Combine like terms: 50 + -50 = 0 0 + -2x = -13 + -50 -2x = -13 + -50 Combine like terms: -13 + -50 = -63 -2x = -63 Divide each side by '-2'. x = 31.5 Simplifying x = 31.5
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