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Mathematical Expression Editor
Solve the system.
\begin{align*} y & = 3 x + 5 \\ y - x & = 3 \end{align*}
\[ x = \answer {-1} \, \text { and } \, y = \answer {2} \]
Solve the system.
\begin{align*} A + 3B & = -1 \\ A - B & = 1 \end{align*}
\[ A = \answer {\frac {1}{2}} \, \text { and } \, B = \answer {-\frac {1}{2}} \]