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Simplifying 2(n + -20) = 4n Reorder the terms: 2(-20 + n) = 4n (-20 * 2 + n * 2) = 4n (-40 + 2n) = 4n Solving -40 + 2n = 4n 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. -40 + 2n + -4n = 4n + -4n Combine like terms: 2n + -4n = -2n -40 + -2n = 4n + -4n Combine like terms: 4n + -4n = 0 -40 + -2n = 0 Add '40' to each side of the equation. -40 + 40 + -2n = 0 + 40 Combine like terms: -40 + 40 = 0 0 + -2n = 0 + 40 -2n = 0 + 40 Combine like terms: 0 + 40 = 40 -2n = 40 Divide each side by '-2'. n = -20 Simplifying n = -20
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