105=3.a

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Solution for 105=3.a equation: 



105=3.a

We move all terms to the left:

105-(3.a)=0

We add all the numbers together, and all the variables

-(+3.a)+105=0

We get rid of parentheses

-3.a+105=0

We add all the numbers together, and all the variables

-3a+105=0

We move all terms containing a to the left, all other terms to the right

-3a=-105

a=-105/-3

a=+35

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