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Simplifying 18 + -7n = 2n Solving 18 + -7n = 2n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-2n' to each side of the equation. 18 + -7n + -2n = 2n + -2n Combine like terms: -7n + -2n = -9n 18 + -9n = 2n + -2n Combine like terms: 2n + -2n = 0 18 + -9n = 0 Add '-18' to each side of the equation. 18 + -18 + -9n = 0 + -18 Combine like terms: 18 + -18 = 0 0 + -9n = 0 + -18 -9n = 0 + -18 Combine like terms: 0 + -18 = -18 -9n = -18 Divide each side by '-9'. n = 2 Simplifying n = 2
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