Question 4 of 10 What should you multiply the first equation (top equation) by in order to eliminate the variable \( x \) when the two equations are added together? \( \left\{\begin{array}{l}2 x-3 y=10 \\ 6 x+4 y=8\end{array}\right. \) Answer here
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Bonus Knowledge
To eliminate the variable \( x \), you need the coefficients of \( x \) in both equations to be the same. The top equation has a coefficient of 2 for \( x \) and the bottom equation has a coefficient of 6. If you multiply the entire first equation by 3, you'll have \( 6x - 9y = 30 \), which matches the coefficient of \( x \) in the second equation. Now, when you add the two new equations together, the \( x \) terms will cancel out, allowing you to solve for \( y \) easily! Using strategic multipliers can really simplify systems of equations for quick solving. Happy calculating!