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Simplifying 9 + -5x = 2x + -12 Reorder the terms: 9 + -5x = -12 + 2x Solving 9 + -5x = -12 + 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. 9 + -5x + -2x = -12 + 2x + -2x Combine like terms: -5x + -2x = -7x 9 + -7x = -12 + 2x + -2x Combine like terms: 2x + -2x = 0 9 + -7x = -12 + 0 9 + -7x = -12 Add '-9' to each side of the equation. 9 + -9 + -7x = -12 + -9 Combine like terms: 9 + -9 = 0 0 + -7x = -12 + -9 -7x = -12 + -9 Combine like terms: -12 + -9 = -21 -7x = -21 Divide each side by '-7'. x = 3 Simplifying x = 3
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