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Simplifying -7x + 12 = 9x + -20 Reorder the terms: 12 + -7x = 9x + -20 Reorder the terms: 12 + -7x = -20 + 9x Solving 12 + -7x = -20 + 9x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9x' to each side of the equation. 12 + -7x + -9x = -20 + 9x + -9x Combine like terms: -7x + -9x = -16x 12 + -16x = -20 + 9x + -9x Combine like terms: 9x + -9x = 0 12 + -16x = -20 + 0 12 + -16x = -20 Add '-12' to each side of the equation. 12 + -12 + -16x = -20 + -12 Combine like terms: 12 + -12 = 0 0 + -16x = -20 + -12 -16x = -20 + -12 Combine like terms: -20 + -12 = -32 -16x = -32 Divide each side by '-16'. x = 2 Simplifying x = 2
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