57+0.3a=6.9

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Solution for 57+0.3a=6.9 equation: 



57+0.3a=6.9

We move all terms to the left:

57+0.3a-(6.9)=0

We add all the numbers together, and all the variables

0.3a+50.1=0

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

0.3a=-50.1

a=-50.1/0.3

a=-167

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