2.1(a-3.7)=-13.86

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Solution for 2.1(a-3.7)=-13.86 equation: 



2.1(a-3.7)=-13.86

We move all terms to the left:

2.1(a-3.7)-(-13.86)=0

We add all the numbers together, and all the variables

2.1(a-3.7)+13.86=0

We multiply parentheses

2.1a-7.77+13.86=0

We add all the numbers together, and all the variables

2.1a+6.09=0

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

2.1a=-6.09

a=-6.09/2.1

a=-2+1/1.11111111111

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