6.1+7.8a=6.99+a+6.7+7.9a

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Solution for 6.1+7.8a=6.99+a+6.7+7.9a equation: 



6.1+7.8a=6.99+a+6.7+7.9a

We move all terms to the left:

6.1+7.8a-(6.99+a+6.7+7.9a)=0

We add all the numbers together, and all the variables

7.8a-(8.9a+13.69)+6.1=0

We get rid of parentheses

7.8a-8.9a-13.69+6.1=0

We add all the numbers together, and all the variables

-1.1a-7.59=0

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

-1.1a=7.59

a=7.59/-1.1

a=-6+0.99/1.1

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