-2(-2x+3.1)=1.8

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Solution for -2(-2x+3.1)=1.8 equation: 



-2(-2x+3.1)=1.8

We move all terms to the left:

-2(-2x+3.1)-(1.8)=0

We add all the numbers together, and all the variables

-2(-2x+3.1)-1.8=0

We multiply parentheses

4x-6.2-1.8=0

We add all the numbers together, and all the variables

4x-8=0

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

4x=8

x=8/4

x=2

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