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Simplifying -7x + 9 = 12 Reorder the terms: 9 + -7x = 12 Solving 9 + -7x = 12 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. 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 = 3 -7x = 3 Divide each side by '-7'. x = -0.4285714286 Simplifying x = -0.4285714286
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