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\begin{tabular}{l} 19. Solve using substitution. \\ \( \qquad \begin{array}{l}x+2 y=6 \\ x-3 y=-19\end{array} \) \\ \hline\end{tabular}

Ask by Paul Wheeler. in the United States
Jan 21,2025

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La solución es \( x = -4 \) y \( y = 5 \).

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To solve the system of equations using substitution, let's start with the first equation: 1. \( x + 2y = 6 \) We can express \( x \) in terms of \( y \): \( x = 6 - 2y \). Now we substitute this expression for \( x \) into the second equation: 2. \( x - 3y = -19 \) Substitute \( x \): \( (6 - 2y) - 3y = -19 \). Simplifying gives: \( 6 - 5y = -19 \). Rearranging yields: \( -5y = -19 - 6 \) \( -5y = -25 \) So, \( y = 5 \). Next, we'll substitute \( y \) back to find \( x \): \( x = 6 - 2(5) = 6 - 10 = -4 \). Hence, the solution to the system of equations is \( x = -4 \) and \( y = 5 \). So the final answer is \( (x, y) = (-4, 5) \).

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