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Simplifying 160 + -2(80 + -2x) = (160 + -2x) * 0.91 160 + (80 * -2 + -2x * -2) = (160 + -2x) * 0.91 160 + (-160 + 4x) = (160 + -2x) * 0.91 Combine like terms: 160 + -160 = 0 0 + 4x = (160 + -2x) * 0.91 4x = (160 + -2x) * 0.91 Reorder the terms for easier multiplication: 4x = 0.91(160 + -2x) 4x = (160 * 0.91 + -2x * 0.91) 4x = (145.6 + -1.82x) Solving 4x = 145.6 + -1.82x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.82x' to each side of the equation. 4x + 1.82x = 145.6 + -1.82x + 1.82x Combine like terms: 4x + 1.82x = 5.82x 5.82x = 145.6 + -1.82x + 1.82x Combine like terms: -1.82x + 1.82x = 0.00 5.82x = 145.6 + 0.00 5.82x = 145.6 Divide each side by '5.82'. x = 25.01718213 Simplifying x = 25.01718213
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