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Simplifying 126 = 140 + -0.7x Solving 126 = 140 + -0.7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.7x' to each side of the equation. 126 + 0.7x = 140 + -0.7x + 0.7x Combine like terms: -0.7x + 0.7x = 0.0 126 + 0.7x = 140 + 0.0 126 + 0.7x = 140 Add '-126' to each side of the equation. 126 + -126 + 0.7x = 140 + -126 Combine like terms: 126 + -126 = 0 0 + 0.7x = 140 + -126 0.7x = 140 + -126 Combine like terms: 140 + -126 = 14 0.7x = 14 Divide each side by '0.7'. x = 20 Simplifying x = 20
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