Algebra 2HardSystems of Equations

Systems of Equations · Hard problem

One total and two differences. Solve for $a_{1}$ , $b_{1}$ and $c_{1}$ in terms of $s$ , $d$ and $e$ .

\begin{aligned} a_{1} + b_{1} + c_{1} = s \\ a_{1} - b_{1} = d \\ b_{1} - 3 c_{1} = e \end{aligned}