2=1.9+a+8

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Solution for 2=1.9+a+8 equation: 



2=1.9+a+8

We move all terms to the left:

2-(1.9+a+8)=0

We add all the numbers together, and all the variables

-(a+9.9)+2=0

We get rid of parentheses

-a-9.9+2=0

We add all the numbers together, and all the variables

-1a-7.9=0

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

-a=7.9

a=7.9/-1

a=-7+0.9/1

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