Answer:x=7
Step-by-step explanation:
180=112+9x+5
Collect like terms 
180-112-5=9x
63=9x
Divide both sides by 9
63/9=9x/9
7=x
x=7
 
        
             
        
        
        
Answer:

Step-by-step explanation:
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For example, in the composition of(f g)(x) = f(g(x)), we need to replace each x found in f(x), the outside function, with g(x), the inside function. Step 3: Simplify the answer. Examples – Now let's use the steps shown above to work through some examples. Example 1: If f(x) = –4x + 9 and g(x) = 2x – 7, find(f g)(x).
        
             
        
        
        
Answer:
9,600,000,000
Step-by-step explanation:
I am not sure it right but I hope it's helpful.
 
        
             
        
        
        
17-2x that should be right