Solve the Formula for the Indicated Variable $\mathrm { P } = \mathrm { s } _ { 1 } + \mathrm { s } _ { 2 } + \mathrm { s } _ { 3 }$

Multiple Choice

Solve the formula for the indicated variable.
- $\mathrm { P } = \mathrm { s } _ { 1 } + \mathrm { s } _ { 2 } + \mathrm { s } _ { 3 }$ , for $\mathrm { s } _ { 3 }$

A) $s _ { 3 } = P + s _ { 1 } + s _ { 2 }$
B) $s _ { 3 } = s _ { 1 } + s _ { 2 } - P$
C) $s _ { 3 } = s _ { 1 } + P - s _ { 2 }$
D) $s _ { 3 } = P - s _ { 1 } - s _ { 2 }$