To solve the system of equations, substitute one equation into the other and solve for the variable. Therefore, the solution to the system of equations given is x = 0.8 and y = -2.2.
To solve the system of equations, we can use the method of substitution.
First, solve one of the equations for one variable in terms of the other variable.
In this case, we can solve the first equation for x:
x = -19 - 9y
Next, substitute this expression for x into the second equation:
3(-19 - 9y) - 3y = 9
Simplify and solve for y:
-57 - 27y - 3y = 9
-57 - 30y = 9
-30y = 66
y = -2.2
Finally, substitute this value of y back into the first equation to find x:
x = -19 - 9(-2.2)
x = -19 + 19.8
x = 0.8
The solution to the system of equations is x = 0.8 and y = -2.2.