Solve the Equation $8 - 3 x = 7 + 3 x$

Multiple Choice

Solve the equation. $8 - 3 x = 7 + 3 x$

A) $\left\{ - \frac { 1 } { 5 } \right\}$
B) $\left\{ \frac { 1 } { 5 } \right\}$
C) $\left\{ \frac { 1 } { 6 } \right\}$
D) $\left\{ \frac { 1 } { 7 } \right\}$
E) $\varnothing$