169=-1+10(5+2k)

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Solution for 169=-1+10(5+2k) equation: 



169=-1+10(5+2k)

We move all terms to the left:

169-(-1+10(5+2k))=0

We add all the numbers together, and all the variables

-(-1+10(2k+5))+169=0



We calculate terms in parentheses: -(-1+10(2k+5)), so:

-1+10(2k+5)

determiningTheFunctionDomain
10(2k+5)-1

We multiply parentheses

20k+50-1

We add all the numbers together, and all the variables

20k+49

Back to the equation:

-(20k+49)



We get rid of parentheses

-20k-49+169=0

We add all the numbers together, and all the variables

-20k+120=0

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

-20k=-120

k=-120/-20

k=+6

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