100.64=2.6(1-7.9n)+4.2n

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Solution for 100.64=2.6(1-7.9n)+4.2n equation: 



100.64=2.6(1-7.9n)+4.2n

We move all terms to the left:

100.64-(2.6(1-7.9n)+4.2n)=0

We add all the numbers together, and all the variables

-(2.6(-7.9n+1)+4.2n)+100.64=0



We calculate terms in parentheses: -(2.6(-7.9n+1)+4.2n), so:

2.6(-7.9n+1)+4.2n

We add all the numbers together, and all the variables

4.2n+2.6(-7.9n+1)

We multiply parentheses

4.2n-18.2n+2.6

We add all the numbers together, and all the variables

-14n+2.6

Back to the equation:

-(-14n+2.6)



We get rid of parentheses

14n-2.6+100.64=0

We add all the numbers together, and all the variables

14n+98.04=0

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

14n=-98.04

n=-98.04/14

n=-7+0.040000000000006/14

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