To solve this system of equations, we can use the method of elimination.
Step 1: Multiply the second equation by 4 to get:
12x - 20y = 20
Step 2: Add this new equation to the first equation to eliminate x:
-3x - 4y + 12x - 20y = -23 + 20
9x - 24y = -3
Step 3: Divide the resulting equation by 3 to simplify:
3x - 8y = -1
Now, we have a new equation:
3x - 8y = -1
Now we have two equations with two variables:
-3x - 4y = -23
3x - 8y = -1
Step 4: Add the two equations to eliminate x:
-3x - 4y + 3x - 8y = -23 - 1
-12y = -24
Step 5: Divide by -12 to solve for y:
y = 2
Step 6: Substitute y = 2 into the first equation to solve for x:
-3x - 4(2) = -23
-3x - 8 = -23
-3x = -15
x = 5
Therefore, the solution to the system of equations is x = 5, y = 2.