Answer:d = -3
Step-by-step explanation:
Simplifying
-7 + -8d = 17
Solving
-7 + -8d = 17
Solving for variable 'd'.
Move all terms containing d to the left, all other terms to the right.
Add '7' to each side of the equation.
-7 + 7 + -8d = 17 + 7
Combine like terms: -7 + 7 = 0
0 + -8d = 17 + 7
-8d = 17 + 7
Combine like terms: 17 + 7 = 24
-8d = 24
Divide each side by '-8'.
d = -3
Simplifying
d = -3
