Solve the Formula $G = 2 ( r - I ) d$

Multiple Choice

Solve the formula $G = 2 ( r - I ) d$ for the variable $7 ^ { \prime }$ .

A) $r = \frac { 2 G } { d } - 1$
B) $r = \frac { G + 1 } { 2 d }$
C) $= \frac { G } { 2 d } - 1$
D) $r = \frac { 2 G } { d } + 1$
E) $r = \frac { G } { 2 d } + 1$