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Simplifying 7 + -1.29x = 9 Solving 7 + -1.29x = 9 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1.29x = 9 + -7 Combine like terms: 7 + -7 = 0 0 + -1.29x = 9 + -7 -1.29x = 9 + -7 Combine like terms: 9 + -7 = 2 -1.29x = 2 Divide each side by '-1.29'. x = -1.550387597 Simplifying x = -1.550387597
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