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Simplifying 30 + -3n = 2 + n Solving 30 + -3n = 2 + 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. 30 + -3n + -1n = 2 + n + -1n Combine like terms: -3n + -1n = -4n 30 + -4n = 2 + n + -1n Combine like terms: n + -1n = 0 30 + -4n = 2 + 0 30 + -4n = 2 Add '-30' to each side of the equation. 30 + -30 + -4n = 2 + -30 Combine like terms: 30 + -30 = 0 0 + -4n = 2 + -30 -4n = 2 + -30 Combine like terms: 2 + -30 = -28 -4n = -28 Divide each side by '-4'. n = 7 Simplifying n = 7
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