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Solve for nn.\newline2n=5n+7\sqrt{-2n} = \sqrt{5n + 7}\newlinen=n = _____

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Q. Solve for nn.\newline2n=5n+7\sqrt{-2n} = \sqrt{5n + 7}\newlinen=n = _____
  1. Square both sides: Square both sides of the equation to eliminate the square roots.\newline(2n)2=(5n+7)2(\sqrt{-2n})^2 = (\sqrt{5n + 7})^2\newline2n=5n+7-2n = 5n + 7
  2. Isolate variable nn: Isolate the variable nn on one side of the equation.\newlineAdd 2n2n to both sides to get all nn terms on one side.\newline2n+2n=5n+7+2n–2n + 2n = 5n + 7 + 2n\newline0=7n+70 = 7n + 7
  3. Subtract 77: Subtract 77 from both sides to isolate the term with nn.\newline07=7n+770 - 7 = 7n + 7 - 7\newline7=7n–7 = 7n
  4. Divide by 77: Divide both sides by 77 to solve for nn.77=7n7\frac{-7}{7} = \frac{7n}{7}n=1n = -1

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