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Simplifying 65 + n = 69 + 3n Solving 65 + n = 69 + 3n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-3n' to each side of the equation. 65 + n + -3n = 69 + 3n + -3n Combine like terms: n + -3n = -2n 65 + -2n = 69 + 3n + -3n Combine like terms: 3n + -3n = 0 65 + -2n = 69 + 0 65 + -2n = 69 Add '-65' to each side of the equation. 65 + -65 + -2n = 69 + -65 Combine like terms: 65 + -65 = 0 0 + -2n = 69 + -65 -2n = 69 + -65 Combine like terms: 69 + -65 = 4 -2n = 4 Divide each side by '-2'. n = -2 Simplifying n = -2
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