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Simplifying -7(6n + 3) = -189 Reorder the terms: -7(3 + 6n) = -189 (3 * -7 + 6n * -7) = -189 (-21 + -42n) = -189 Solving -21 + -42n = -189 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + -42n = -189 + 21 Combine like terms: -21 + 21 = 0 0 + -42n = -189 + 21 -42n = -189 + 21 Combine like terms: -189 + 21 = -168 -42n = -168 Divide each side by '-42'. n = 4 Simplifying n = 4
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