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➷ 3.5 + x = 7
We need to isolate x
Subtract 3.5 from both sides:
x = 3.5
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➶ Hope This Helps You!
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↬ ʜᴀɴɴᴀʜ ♡
 
        
                    
             
        
        
        
Hi!
So really focus on the fact that he started at $230, and then added an amount of money which we'll call x, which made his total equal $599. 
Take the parts I put in bold, and write the equation.
$230 + x = $599
Now we need to find x. 
Whatever we do to the equation, we do it to both sides. 
Our goal is to isolate x on one side. 
Subtract 230 from both sides. 
$230 - $230 + x = $599 - $230
x = $369
The answer is A. $230 + x = $599 x = $369
Hope this helps! :)
-Peredhel
        
             
        
        
        
Answer:

Step-by-step explanation:

 
        
                    
             
        
        
        
Answer:
801/1000
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
8n - 4
Step-by-step explanation:
The numbers here go up in 8, so you have 8n. Afterwards, use the term and the 8 times tables. Eg. 4 is the first term and the first 8 multiple is 8, so 4-8. You have to subtract 4 from 8 to get the first term. Sorry if this didn't help but yeah...