2.9=4a+13

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Solution for 2.9=4a+13 equation: 



2.9=4a+13

We move all terms to the left:

2.9-(4a+13)=0

We get rid of parentheses

-4a-13+2.9=0

We add all the numbers together, and all the variables

-4a-10.1=0

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

-4a=10.1

a=10.1/-4

a=-2+1/1.9047619047619

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