Step-by-step explanation:
 ✲ 
Remove the unnecessary brackets :
⇢ 
Combine like terms. Like terms are those which have the same base. Only coefficients of like terms can be added or subtracted.
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Hope I helped ! ♡
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Answer:
B: 6/4 or 1 2/4
Step-by-step explanation:
 
        
             
        
        
        
Answer:
3.50378787879
Step-by-step explanation: