Posted by **^^^^kesha** on Saturday, June 9, 2012 at 10:08am.

3(a+2)=4a I multiply 3*a+3*2=4a

so 3a+6=4a I added 3a to 4a/ =7a

and answer was 1(answer is 6) i just don't understand how and why we subtract 3a from 4a instead of adding. please help me

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