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Simplifying 7n + (-7x) = 4n + -9x Solving 7n + (-7x) = 4n + -9x Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-4n' to each side of the equation. 7n + -4n + (-7x) = 4n + -4n + -9x Combine like terms: 7n + -4n = 3n 3n + (-7x) = 4n + -4n + -9x Combine like terms: 4n + -4n = 0 3n + (-7x) = 0 + -9x 3n + (-7x) = -9x Add '(7x)' to each side of the equation. 3n + (-7x) + (7x) = -9x + (7x) Combine like terms: (-7x) + (7x) = 0 3n + 0 = -9x + (7x) 3n = -9x + (7x) Combine like terms: -9x + (7x) = -2x 3n = -2x Divide each side by '3'. n = -0.6666666667x Simplifying n = -0.6666666667x
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