8k-8=3(k+1)-15(k-1)

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Solution for 8k-8=3(k+1)-15(k-1) equation: 



8k-8=3(k+1)-15(k-1)

We move all terms to the left:

8k-8-(3(k+1)-15(k-1))=0



We calculate terms in parentheses: -(3(k+1)-15(k-1)), so:

3(k+1)-15(k-1)

We multiply parentheses

3k-15k+3+15

We add all the numbers together, and all the variables

-12k+18

Back to the equation:

-(-12k+18)



We get rid of parentheses

8k+12k-18-8=0

We add all the numbers together, and all the variables

20k-26=0

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

20k=26

k=26/20

k=1+3/10

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