Question
Solve each system in terms of $A, B, C, D, E,$ and $F$ where $A-F$ are nonzero numbers. Note that $A \neq B$ and $A E \neq B D$.$$\begin{aligned}&x+y=A\\&x-y=B\end{aligned}$$
Step 1
Step 1: Add the two equations together: \[x + y + x - y = A + B\] This simplifies to: \[2x = A + B\] Then, divide both sides by 2 to solve for x: \[x = \frac{A + B}{2}\] Show more…
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