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Simplifying 90 = 0.7x Solving 90 = 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. 90 + -0.7x = 0.7x + -0.7x Combine like terms: 0.7x + -0.7x = 0.0 90 + -0.7x = 0.0 Add '-90' to each side of the equation. 90 + -90 + -0.7x = 0.0 + -90 Combine like terms: 90 + -90 = 0 0 + -0.7x = 0.0 + -90 -0.7x = 0.0 + -90 Combine like terms: 0.0 + -90 = -90 -0.7x = -90 Divide each side by '-0.7'. x = 128.5714286 Simplifying x = 128.5714286
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