64.4=7.8a

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Solution for 64.4=7.8a equation: 



64.4=7.8a

We move all terms to the left:

64.4-(7.8a)=0

We add all the numbers together, and all the variables

-(+7.8a)+64.4=0

We get rid of parentheses

-7.8a+64.4=0

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

-7.8a=-64.4

a=-64.4/-7.8

a=8+2/7.8

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