-154=-7(1+3k)

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Solution for -154=-7(1+3k) equation: 



-154=-7(1+3k)

We move all terms to the left:

-154-(-7(1+3k))=0

We add all the numbers together, and all the variables

-(-7(3k+1))-154=0



We calculate terms in parentheses: -(-7(3k+1)), so:

-7(3k+1)

We multiply parentheses

-21k-7

Back to the equation:

-(-21k-7)



We get rid of parentheses

21k+7-154=0

We add all the numbers together, and all the variables

21k-147=0

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

21k=147

k=147/21

k=7

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