7(5k+8)=-21

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Solution for 7(5k+8)=-21 equation: 



7(5k+8)=-21

We move all terms to the left:

7(5k+8)-(-21)=0

We add all the numbers together, and all the variables

7(5k+8)+21=0

We multiply parentheses

35k+56+21=0

We add all the numbers together, and all the variables

35k+77=0

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

35k=-77

k=-77/35

k=-2+1/5

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