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Simplifying 7x + 2y = 7y + 2x + -30 Reorder the terms: 7x + 2y = -30 + 2x + 7y Solving 7x + 2y = -30 + 2x + 7y 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. 7x + -2x + 2y = -30 + 2x + -2x + 7y Combine like terms: 7x + -2x = 5x 5x + 2y = -30 + 2x + -2x + 7y Combine like terms: 2x + -2x = 0 5x + 2y = -30 + 0 + 7y 5x + 2y = -30 + 7y Add '-2y' to each side of the equation. 5x + 2y + -2y = -30 + 7y + -2y Combine like terms: 2y + -2y = 0 5x + 0 = -30 + 7y + -2y 5x = -30 + 7y + -2y Combine like terms: 7y + -2y = 5y 5x = -30 + 5y Divide each side by '5'. x = -6 + y Simplifying x = -6 + y
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