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Simplifying 3x + 15 = 45 + -2x Reorder the terms: 15 + 3x = 45 + -2x Solving 15 + 3x = 45 + -2x 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. 15 + 3x + 2x = 45 + -2x + 2x Combine like terms: 3x + 2x = 5x 15 + 5x = 45 + -2x + 2x Combine like terms: -2x + 2x = 0 15 + 5x = 45 + 0 15 + 5x = 45 Add '-15' to each side of the equation. 15 + -15 + 5x = 45 + -15 Combine like terms: 15 + -15 = 0 0 + 5x = 45 + -15 5x = 45 + -15 Combine like terms: 45 + -15 = 30 5x = 30 Divide each side by '5'. x = 6 Simplifying x = 6
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