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Simplifying 140 = 2x + x Combine like terms: 2x + x = 3x 140 = 3x Solving 140 = 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. 140 + -3x = 3x + -3x Combine like terms: 3x + -3x = 0 140 + -3x = 0 Add '-140' to each side of the equation. 140 + -140 + -3x = 0 + -140 Combine like terms: 140 + -140 = 0 0 + -3x = 0 + -140 -3x = 0 + -140 Combine like terms: 0 + -140 = -140 -3x = -140 Divide each side by '-3'. x = 46.66666667 Simplifying x = 46.66666667
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