Question

Solve for d.
-10 = -2 + 1/2 d

A. d = -24
B. d = -16
C. d = -6
D. d = -4

Answer 1

Add 2 to both sides first....

-10 + 2 = -2 + 2 + 1/2d

-8 = 1/2d

Now multiply 2 to both sides to solve for just 'd'

d = -8 * 2

d = ???

Answer 2

-16 (:

Answer 3

There you go :)

Answer 4

\[-10=-2 + \frac{ d }{ 2 }\]
So add 2 to both sides
\[-8=\frac{ d }{ 2 }\]
times both sides by 2

Hope that helps :)