168=1k+20(k+20)

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Solution for 168=1k+20(k+20) equation: 



168=1k+20(k+20)

We move all terms to the left:

168-(1k+20(k+20))=0



We calculate terms in parentheses: -(1k+20(k+20)), so:

1k+20(k+20)

We add all the numbers together, and all the variables

k+20(k+20)

We multiply parentheses

k+20k+400

We add all the numbers together, and all the variables

21k+400

Back to the equation:

-(21k+400)



We get rid of parentheses

-21k-400+168=0

We add all the numbers together, and all the variables

-21k-232=0

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

-21k=232

k=232/-21

k=-11+1/21

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