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Solve for dd.\newline2(d+9)+4=6-2(d + -9) + -4 = 6\newlined=d = _____

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Q. Solve for dd.\newline2(d+9)+4=6-2(d + -9) + -4 = 6\newlined=d = _____
  1. Distribute and Simplify: Simplify the equation by distributing 2-2 into (d+9)(d + -9).\newline2(d+9)+4=6-2(d + -9) + -4 = 6\newline2d+184=6-2d + 18 - 4 = 6
  2. Combine Like Terms: Combine like terms on the left side.\newline2d+14=6-2d + 14 = 6
  3. Isolate Variable: Isolate dd by subtracting 1414 from both sides.\newline2d+1414=614-2d + 14 - 14 = 6 - 14\newline2d=8-2d = -8
  4. Divide to Solve: Divide both sides by 2-2 to solve for dd.\newline2d/2=8/2-2d / -2 = -8 / -2\newlined=4d = 4