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Simplifying 2x + 9 = 72 + 5x Reorder the terms: 9 + 2x = 72 + 5x Solving 9 + 2x = 72 + 5x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5x' to each side of the equation. 9 + 2x + -5x = 72 + 5x + -5x Combine like terms: 2x + -5x = -3x 9 + -3x = 72 + 5x + -5x Combine like terms: 5x + -5x = 0 9 + -3x = 72 + 0 9 + -3x = 72 Add '-9' to each side of the equation. 9 + -9 + -3x = 72 + -9 Combine like terms: 9 + -9 = 0 0 + -3x = 72 + -9 -3x = 72 + -9 Combine like terms: 72 + -9 = 63 -3x = 63 Divide each side by '-3'. x = -21 Simplifying x = -21
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