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Simplifying 655 = x + (x + 39) + (x + -40) Reorder the terms: 655 = x + (39 + x) + (x + -40) Remove parenthesis around (39 + x) 655 = x + 39 + x + (x + -40) Reorder the terms: 655 = x + 39 + x + (-40 + x) Remove parenthesis around (-40 + x) 655 = x + 39 + x + -40 + x Reorder the terms: 655 = 39 + -40 + x + x + x Combine like terms: 39 + -40 = -1 655 = -1 + x + x + x Combine like terms: x + x = 2x 655 = -1 + 2x + x Combine like terms: 2x + x = 3x 655 = -1 + 3x Solving 655 = -1 + 3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3x' to each side of the equation. 655 + -3x = -1 + 3x + -3x Combine like terms: 3x + -3x = 0 655 + -3x = -1 + 0 655 + -3x = -1 Add '-655' to each side of the equation. 655 + -655 + -3x = -1 + -655 Combine like terms: 655 + -655 = 0 0 + -3x = -1 + -655 -3x = -1 + -655 Combine like terms: -1 + -655 = -656 -3x = -656 Divide each side by '-3'. x = 218.6666667 Simplifying x = 218.6666667
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