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2 votes
O+2a+b-2o-b+o so what is the answer

User Oleq
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1 Answer

5 votes
assuming O=o



group then add like terms

1o+2a+1b-2o-1b+1o=
1o+1o-2o+2a+1b-1b=
0+2a+0=
2a
User Yina
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