-12=2.4a

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Solution for -12=2.4a equation: 



-12=2.4a

We move all terms to the left:

-12-(2.4a)=0

We add all the numbers together, and all the variables

-(+2.4a)-12=0

We get rid of parentheses

-2.4a-12=0

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

-2.4a=12

a=12/-2.4

a=-5

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