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Simplifying 150 = -5(5 + -5n) 150 = (5 * -5 + -5n * -5) 150 = (-25 + 25n) Solving 150 = -25 + 25n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-25n' to each side of the equation. 150 + -25n = -25 + 25n + -25n Combine like terms: 25n + -25n = 0 150 + -25n = -25 + 0 150 + -25n = -25 Add '-150' to each side of the equation. 150 + -150 + -25n = -25 + -150 Combine like terms: 150 + -150 = 0 0 + -25n = -25 + -150 -25n = -25 + -150 Combine like terms: -25 + -150 = -175 -25n = -175 Divide each side by '-25'. n = 7 Simplifying n = 7
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