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Simplifying 2x + 5x + 40 = 140 Reorder the terms: 40 + 2x + 5x = 140 Combine like terms: 2x + 5x = 7x 40 + 7x = 140 Solving 40 + 7x = 140 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-40' to each side of the equation. 40 + -40 + 7x = 140 + -40 Combine like terms: 40 + -40 = 0 0 + 7x = 140 + -40 7x = 140 + -40 Combine like terms: 140 + -40 = 100 7x = 100 Divide each side by '7'. x = 14.28571429 Simplifying x = 14.28571429
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