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Simplifying 0.65 * 640 = n Multiply 0.65 * 640 416 = n Solving 416 = n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1n' to each side of the equation. 416 + -1n = n + -1n Combine like terms: n + -1n = 0 416 + -1n = 0 Add '-416' to each side of the equation. 416 + -416 + -1n = 0 + -416 Combine like terms: 416 + -416 = 0 0 + -1n = 0 + -416 -1n = 0 + -416 Combine like terms: 0 + -416 = -416 -1n = -416 Divide each side by '-1'. n = 416 Simplifying n = 416
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