3=(x+2.1)

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Solution for 3=(x+2.1) equation: 



3=(x+2.1)

We move all terms to the left:

3-((x+2.1))=0



We calculate terms in parentheses: -((x+2.1)), so:

(x+2.1)

We get rid of parentheses

x+2.1

Back to the equation:

-(x+2.1)



We get rid of parentheses

-x-2.1+3=0

We add all the numbers together, and all the variables

-1x+0.9=0

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

-x=-0.9

x=-0.9/-1

x=0.9/1

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