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When added, the $x$-terms cancel out.

Would you like me to continue solving the system of equations? Here are some related questions:

1. What happens when you add these two equations after cancellation?
2. Can we solve for $y$ once the $x$-terms are eliminated?
3. How do you check the solution to ensure it satisfies both equations?
4. Could a different multiplier also eliminate $y$ instead of $x$?
5. How do elimination and substitution methods compare in solving systems of equations?

Tip: Always ensure coefficients are exact opposites before adding to eliminate variables.