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Simplifying 7x + y = 140 Solving 7x + y = 140 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1y' to each side of the equation. 7x + y + -1y = 140 + -1y Combine like terms: y + -1y = 0 7x + 0 = 140 + -1y 7x = 140 + -1y Divide each side by '7'. x = 20 + -0.1428571429y Simplifying x = 20 + -0.1428571429y
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