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Simplifying 8x + 7y = 2x + y Solving 8x + 7y = 2x + y Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. 8x + -2x + 7y = 2x + -2x + y Combine like terms: 8x + -2x = 6x 6x + 7y = 2x + -2x + y Combine like terms: 2x + -2x = 0 6x + 7y = 0 + y 6x + 7y = y Add '-7y' to each side of the equation. 6x + 7y + -7y = y + -7y Combine like terms: 7y + -7y = 0 6x + 0 = y + -7y 6x = y + -7y Combine like terms: y + -7y = -6y 6x = -6y Divide each side by '6'. x = -1y Simplifying x = -1y
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