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Simplifying 426 = x + 2x Combine like terms: x + 2x = 3x 426 = 3x Solving 426 = 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. 426 + -3x = 3x + -3x Combine like terms: 3x + -3x = 0 426 + -3x = 0 Add '-426' to each side of the equation. 426 + -426 + -3x = 0 + -426 Combine like terms: 426 + -426 = 0 0 + -3x = 0 + -426 -3x = 0 + -426 Combine like terms: 0 + -426 = -426 -3x = -426 Divide each side by '-3'. x = 142 Simplifying x = 142
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