Answer:
7
Explanation:
This is an equation, where we find the value of z. We can simplify the equation.
-12.2z - 13.4z = -179.2
-25.6z = -179.2
Now, to find the value of z, we have to isolate the variable by dividing both sides by -25.6
-25.6/-25.6z = -179.2/-25.6
1z = 7
z = 7