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26-04-2016
Mathematics

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can you help me with number 2 please show me how you did it thank you

can you help me with number 2 please show me how you did it thank you class=

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apologiabiology apologiabiology

26-04-2016

distraibutiv peorpoty
a(b+c)=ab+ac

we have
3a+7+2(3+a)
distribute first
2(3+a)=6+2a

now we have
3a+7+6+2a
move like terms together
3a+2a+7+6
add lke terms
5a+13

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