We are asked to solve the system of equations: $ \begin{cases} -4x + 3y = -9 \\ 3x - 2y = 8 \end{cases} $ using elimination or any other convenient method.

AlgebraSystems of EquationsLinear EquationsElimination Method
2025/3/19

1. Problem Description

We are asked to solve the system of equations:
\begin{cases}
-4x + 3y = -9 \\
3x - 2y = 8
\end{cases}
using elimination or any other convenient method.

2. Solution Steps

We will use the elimination method. Multiply the first equation by 2 and the second equation by 3 to eliminate yy.
2(4x+3y)=2(9)2(-4x + 3y) = 2(-9)
8x+6y=18-8x + 6y = -18
3(3x2y)=3(8)3(3x - 2y) = 3(8)
9x6y=249x - 6y = 24
Add the two resulting equations:
(8x+6y)+(9x6y)=18+24(-8x + 6y) + (9x - 6y) = -18 + 24
x=6x = 6
Substitute x=6x = 6 into the first equation:
4(6)+3y=9-4(6) + 3y = -9
24+3y=9-24 + 3y = -9
3y=9+243y = -9 + 24
3y=153y = 15
y=5y = 5
Thus, the solution is x=6x = 6 and y=5y = 5.

3. Final Answer

(x,y)=(6,5)(x, y) = (6, 5)

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