I think it would be:
22 + x = 118 for your equation. 
And then to solve, it would be:
22 + x = 118
-22 -22
x = 96
Average length of black mamba = 96 inches
However it is late where I am so my bad if that’s not what you needed 
        
             
        
        
        
"Standard form" is the form ...
... ax +by = c
where a, b, c are mutually prime integers and the leading coefficient is positive. (If a ≠ 0, then it is "leading". If a = 0, then b is the leading coefficient.)
Of the choices offered, the only one that is equivalent to the given equation is ...
... -x + 6y = 5
_____
However, "standard form" requires the leading coefficient be positive, so an appropriate answer would be ...
... x -6y = -5
or
... 6y -x = 5
____
This is another one for my "broken question" file.
 
        
             
        
        
        
Answer: -9/20 is equal to -9/10 when divided by 3/6 (1/2) 
Step-by-step explanation:
- Begin by reducing the fraction you're dividing with. In this case 3/6 can be reduced to 1.2, also known as 0.5 
- Beginning with -9/20, as it is the first answer option, we can put the problem into the following equation: -9/20 * 2/1 = -9/10. 
It is always good to verify all of your answer options are not possible answers. However, in a question like this, the math evenly works out in most cases, eliminating any other possible answer options.
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