Question

D – 10 – 2d + 7 = 8 + d – 10 – 3d

Answer 1

Add up all the combined terms on each side. 17-2d = -2-2d Now add -2 to the left and -2 to the right . The last step is divide d= 1

Answer 2

d=1

Explanation:

Let's start by combining like terms.

-3-d=-2-2d

+d. +d

-3= -2-d

+2 +2

-1= -d

/-1. /-1

d=1