2(a+2a)=902(a+2a)=90

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Solution for 2(a+2a)=902(a+2a)=90 equation: 



2(a+2a)=902(a+2a)=90

We move all terms to the left:

2(a+2a)-(902(a+2a))=0

We add all the numbers together, and all the variables

2(+3a)-(902(+3a))=0

We multiply parentheses

6a-(902(+3a))=0



We calculate terms in parentheses: -(902(+3a)), so:

902(+3a)

We multiply parentheses

2706a

Back to the equation:

-(2706a)



We add all the numbers together, and all the variables

-2700a=0

a=0/-2700

a=0

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