Question

solve for d.
9d - 3d + 2d - 7d + 2d = 18
d =
submit

Explanation:

Step1: Combine like terms

First, we combine the terms with \( d \). So, \( 9d - 3d + 2d - 7d + 2d \) can be calculated as follows:
\( (9 - 3 + 2 - 7 + 2)d \)
Calculating the coefficients: \( 9 - 3 = 6 \), \( 6 + 2 = 8 \), \( 8 - 7 = 1 \), \( 1 + 2 = 3 \). So the left side simplifies to \( 3d \).

Step2: Solve for \( d \)

Now we have the equation \( 3d = 18 \). To solve for \( d \), we divide both sides of the equation by 3:
\( d=\frac{18}{3} \)
\( d = 6 \)

Answer:

\( d = 6 \)