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Simplifying 31n = -7 + 3 + -21n Combine like terms: -7 + 3 = -4 31n = -4 + -21n Solving 31n = -4 + -21n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '21n' to each side of the equation. 31n + 21n = -4 + -21n + 21n Combine like terms: 31n + 21n = 52n 52n = -4 + -21n + 21n Combine like terms: -21n + 21n = 0 52n = -4 + 0 52n = -4 Divide each side by '52'. n = -0.07692307692 Simplifying n = -0.07692307692
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