15=4.3n-2.1(2-4)

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Solution for 15=4.3n-2.1(2-4) equation: 



15=4.3n-2.1(2-4)

We move all terms to the left:

15-(4.3n-2.1(2-4))=0

We add all the numbers together, and all the variables

-(4.3n-2.1(-2))+15=0



We calculate terms in parentheses: -(4.3n-2.1(-2)), so:

4.3n-2.1(-2)

We add all the numbers together, and all the variables

4.3n+4.2

Back to the equation:

-(4.3n+4.2)



We get rid of parentheses

-4.3n-4.2+15=0

We add all the numbers together, and all the variables

-4.3n+10.8=0

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

-4.3n=-10.8

n=-10.8/-4.3

n=2+1/1.95454545455

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