5k+10=2k-21

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Solution for 5k+10=2k-21 equation: 



5k+10=2k-21

We move all terms to the left:

5k+10-(2k-21)=0

We get rid of parentheses

5k-2k+21+10=0

We add all the numbers together, and all the variables

3k+31=0

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

3k=-31

k=-31/3

k=-10+1/3

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