Question

Solve the system using elimination.

x + 5y = –28
4x – 5y = 13

Answer 1

You can combine the top and bottom to get\[5x=15\]then divide 5 from the left to get x=15.

Answer 2

That's x. Can you solve y?

Answer 3

\(\large \begin{array}{llll}
x &{\color{red}{ + 5y}} =& -28\\
4x &{\color{red}{ - 5y}} =& 13
\\\hline\\
\square ?&\square ?=&\square ?
\end{array}\)