Question

Can someone tell me what the ordered pair for 5x+7y=23
-5x+y=49 is?

Answer 1

use the elimination method, simpler for this case \(\large \begin{array}{llll}
\quad \cancel{5x}+7y=23\\
\cancel{-5x}+y\quad =49\\
\hline\\
\end{array}\)


and solve for "y", then substitute the found "y" to get "x", on either equation