-0.4a+3=7.a=

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Solution for -0.4a+3=7.a= equation: 



-0.4a+3=7.a=

We move all terms to the left:

-0.4a+3-(7.a)=0

We add all the numbers together, and all the variables

-0.4a-(+7.a)+3=0

We get rid of parentheses

-0.4a-7.a+3=0

We add all the numbers together, and all the variables

-7.4a+3=0

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

-7.4a=-3

a=-3/-7.4

a=3/7.4

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