Answer:
y=8
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
 
        
                    
             
        
        
        
Answer:
12 and a number plus nine equals thirty- three 
Step-by-step explanation:
 
        
                    
             
        
        
        
In a geometric sequence dividing any term by the term before it yields the common multiplier.
Then x/(x+8) = (3x-8)/x
Solving for x:  reduces to x^2-10x +16 factor into (x-2)(x-8)
Then x = 2 or 8
2 produces a sequence of -2, 2, -2 ...
8 produces a sequence of 4, 8, 16 ...
        
             
        
        
        
Well... to solve use rise over run... that is to find the slope,
now to find the y-intercept you look at what coordinate crosses the y-axis. 
y= (what you got for the slope Ex. 1/2)x + (the y-intercept)
Figure it out and you got the answer with just a bit of help!!!
Hope this helps!