Solve the system of equations.

5x–4y=–44

–x+3y=22
(1 point)

1 answer

To solve the system of equations:

  1. \( 5x - 4y = -44 \) (Equation 1)
  2. \( -x + 3y = 22 \) (Equation 2)

Let's solve this system using the substitution or elimination method. Here, we'll use substitution.

First, we can solve Equation 2 for \( x \):

\[ -x + 3y = 22 \] \[ -x = 22 - 3y \] \[ x = 3y - 22 \]

Now we can substitute \( x \) in Equation 1:

\[ 5(3y - 22) - 4y = -44 \]

Distributing the \( 5 \):

\[ 15y - 110 - 4y = -44 \]

Combining like terms:

\[ 11y - 110 = -44 \]

Adding \( 110 \) to both sides:

\[ 11y = 66 \]

Dividing by \( 11 \):

\[ y = 6 \]

Now that we have the value for \( y \), we can substitute it back to find \( x \):

\[ x = 3(6) - 22 \] \[ x = 18 - 22 \] \[ x = -4 \]

Thus, the solution to the system of equations is:

\[ \boxed{(x, y) = (-4, 6)} \]

To verify, we can check both equations:

  1. For Equation 1: \( 5(-4) - 4(6) = -20 - 24 = -44 \) (True)
  2. For Equation 2: \( -(-4) + 3(6) = 4 + 18 = 22 \) (True)

Both equations are satisfied, confirming that the solution is correct.