-30=-3(1+7k)-2(k+2)

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Solution for -30=-3(1+7k)-2(k+2) equation: 



-30=-3(1+7k)-2(k+2)

We move all terms to the left:

-30-(-3(1+7k)-2(k+2))=0

We add all the numbers together, and all the variables

-(-3(7k+1)-2(k+2))-30=0



We calculate terms in parentheses: -(-3(7k+1)-2(k+2)), so:

-3(7k+1)-2(k+2)

We multiply parentheses

-21k-2k-3-4

We add all the numbers together, and all the variables

-23k-7

Back to the equation:

-(-23k-7)



We get rid of parentheses

23k+7-30=0

We add all the numbers together, and all the variables

23k-23=0

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

23k=23

k=23/23

k=1

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