Solve Each Equation for the Variable N $\frac { N } { S } = \frac { T } { S + T }$

Multiple Choice

Solve each equation for the variable N . $\frac { N } { S } = \frac { T } { S + T }$

A) $N = \frac { S T } { T - S }$
B) $N = \frac { S T } { S - T }$
C) $N = \frac { S T } { S + T }$