30=k+-2

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Solution for 30=k+-2 equation: 



30=k+-2

We move all terms to the left:

30-(k+-2)=0

We add all the numbers together, and all the variables

-(k-2)+30=0

We get rid of parentheses

-k+2+30=0

We add all the numbers together, and all the variables

-1k+32=0

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

-k=-32

k=-32/-1

k=+32

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