To solve the system of equations, we can substitute the value of x from the second equation into the first equation:
-5(2y - 15) + 4y = 3
Now, solve for y:
-10y + 75 + 4y = 3
-6y + 75 = 3
-6y = 3 - 75
-6y = -72
y = -72 / -6
y = 12
Next, substitute the value of y back into the second equation to find x:
x = 2(12) - 15
x = 24 - 15
x = 9
So, the solution to the system of equations is x = 9 and y = 12.