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Simplifying 2x + -1y = 7 Solving 2x + -1y = 7 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add 'y' to each side of the equation. 2x + -1y + y = 7 + y Combine like terms: -1y + y = 0 2x + 0 = 7 + y 2x = 7 + y Divide each side by '2'. x = 3.5 + 0.5y Simplifying x = 3.5 + 0.5y

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