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Simplifying (3x + -13) = (x + -3) Reorder the terms: (-13 + 3x) = (x + -3) Remove parenthesis around (-13 + 3x) -13 + 3x = (x + -3) Reorder the terms: -13 + 3x = (-3 + x) Remove parenthesis around (-3 + x) -13 + 3x = -3 + x Solving -13 + 3x = -3 + x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. -13 + 3x + -1x = -3 + x + -1x Combine like terms: 3x + -1x = 2x -13 + 2x = -3 + x + -1x Combine like terms: x + -1x = 0 -13 + 2x = -3 + 0 -13 + 2x = -3 Add '13' to each side of the equation. -13 + 13 + 2x = -3 + 13 Combine like terms: -13 + 13 = 0 0 + 2x = -3 + 13 2x = -3 + 13 Combine like terms: -3 + 13 = 10 2x = 10 Divide each side by '2'. x = 5 Simplifying x = 5
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