4.2+1.8=2.5a

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Solution for 4.2+1.8=2.5a equation: 



4.2+1.8=2.5a

We move all terms to the left:

4.2+1.8-(2.5a)=0

We add all the numbers together, and all the variables

-(+2.5a)+4.2+1.8=0

We add all the numbers together, and all the variables

-(+2.5a)+6=0

We get rid of parentheses

-2.5a+6=0

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

-2.5a=-6

a=-6/-2.5

a=2+1/2.5

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