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Simplifying 225 = 20x + -45 Reorder the terms: 225 = -45 + 20x Solving 225 = -45 + 20x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20x' to each side of the equation. 225 + -20x = -45 + 20x + -20x Combine like terms: 20x + -20x = 0 225 + -20x = -45 + 0 225 + -20x = -45 Add '-225' to each side of the equation. 225 + -225 + -20x = -45 + -225 Combine like terms: 225 + -225 = 0 0 + -20x = -45 + -225 -20x = -45 + -225 Combine like terms: -45 + -225 = -270 -20x = -270 Divide each side by '-20'. x = 13.5 Simplifying x = 13.5
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