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Solve for dd.\newline−9d=−8−7d-9d = -8 - 7d\newlined=d = __

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Full solution

Q. Solve for dd.\newline−9d=−8−7d-9d = -8 - 7d\newlined=d = __
  1. Isolate variable d: First, we want to isolate the variable d on one side of the equation. To do this, we will add 7d7d to both sides of the equation to move all the d terms to the left side.\newline−9d+7d=−8−7d+7d-9d + 7d = -8 - 7d + 7d
  2. Simplify both sides: Now, we simplify both sides of the equation by combining like terms.\newline(−9d+7d)=−8(-9d + 7d) = -8\newline−2d=−8-2d = -8
  3. Divide to solve: Next, we divide both sides of the equation by −2-2 to solve for dd.−2d−2=−8−2\frac{-2d}{-2} = \frac{-8}{-2}
  4. Final value of d: After dividing, we get the value of dd.d=4d = 4

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