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Simplifying 90 + -5n = 0 Solving 90 + -5n = 0 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-90' to each side of the equation. 90 + -90 + -5n = 0 + -90 Combine like terms: 90 + -90 = 0 0 + -5n = 0 + -90 -5n = 0 + -90 Combine like terms: 0 + -90 = -90 -5n = -90 Divide each side by '-5'. n = 18 Simplifying n = 18
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