.15=4.3n-2.1(n-4)

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



.15=4.3n-2.1(n-4)

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(4.3n-2.1(n-4))+0.15=0



We calculate terms in parentheses: -(4.3n-2.1(n-4)), so:

4.3n-2.1(n-4)

We multiply parentheses

4.3n-2.1n+8.4

We add all the numbers together, and all the variables

2.2n+8.4

Back to the equation:

-(2.2n+8.4)



We get rid of parentheses

-2.2n-8.4+0.15=0

We add all the numbers together, and all the variables

-2.2n-8.25=0

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

-2.2n=8.25

n=8.25/-2.2

n=-3+1/1.3333333333333

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