38=a+7.9

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Solution for 38=a+7.9 equation: 



38=a+7.9

We move all terms to the left:

38-(a+7.9)=0

We get rid of parentheses

-a-7.9+38=0

We add all the numbers together, and all the variables

-1a+30.1=0

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

-a=-30.1

a=-30.1/-1

a=30+0.1/1

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