8k-3(2k+5)=21

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Solution for 8k-3(2k+5)=21 equation: 



8k-3(2k+5)=21

We move all terms to the left:

8k-3(2k+5)-(21)=0

We multiply parentheses

8k-6k-15-21=0

We add all the numbers together, and all the variables

2k-36=0

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

2k=36

k=36/2

k=18

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