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Simplifying 4x + -9y = 54 Solving 4x + -9y = 54 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9y' to each side of the equation. 4x + -9y + 9y = 54 + 9y Combine like terms: -9y + 9y = 0 4x + 0 = 54 + 9y 4x = 54 + 9y Divide each side by '4'. x = 13.5 + 2.25y Simplifying x = 13.5 + 2.25y
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