4.2+2.5a=9.2a=

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Solution for 4.2+2.5a=9.2a= equation: 



4.2+2.5a=9.2a=

We move all terms to the left:

4.2+2.5a-(9.2a)=0

We add all the numbers together, and all the variables

2.5a-(+9.2a)+4.2=0

We get rid of parentheses

2.5a-9.2a+4.2=0

We add all the numbers together, and all the variables

-6.7a+4.2=0

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

-6.7a=-4.2

a=-4.2/-6.7

a=1.9090909090909/3.0454545454545

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