7.8=2.5+a

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Solution for 7.8=2.5+a equation: 



7.8=2.5+a

We move all terms to the left:

7.8-(2.5+a)=0

We add all the numbers together, and all the variables

-(a+2.5)+7.8=0

We get rid of parentheses

-a-2.5+7.8=0

We add all the numbers together, and all the variables

-1a+5.3=0

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

-a=-5.3

a=-5.3/-1

a=5+0.3/1

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