-2.1a=18.9

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Solution for -2.1a=18.9 equation: 



-2.1a=18.9

We move all terms to the left:

-2.1a-(18.9)=0

We add all the numbers together, and all the variables

-2.1a-18.9=0

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

-2.1a=18.9

a=18.9/-2.1

a=-8+1/1

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