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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Answer:
B: 6/4 or 1 2/4
Step-by-step explanation:
Answer:
3.50378787879
Step-by-step explanation: