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Simplifying 12 = (-7) * x + -9 Reorder the terms: 12 = -9 + -7x Solving 12 = -9 + -7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7x' to each side of the equation. 12 + 7x = -9 + -7x + 7x Combine like terms: -7x + 7x = 0 12 + 7x = -9 + 0 12 + 7x = -9 Add '-12' to each side of the equation. 12 + -12 + 7x = -9 + -12 Combine like terms: 12 + -12 = 0 0 + 7x = -9 + -12 7x = -9 + -12 Combine like terms: -9 + -12 = -21 7x = -21 Divide each side by '7'. x = -3 Simplifying x = -3
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