15+20k=-7+18k

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Solution for 15+20k=-7+18k equation: 



15+20k=-7+18k

We move all terms to the left:

15+20k-(-7+18k)=0

We add all the numbers together, and all the variables

20k-(18k-7)+15=0

We get rid of parentheses

20k-18k+7+15=0

We add all the numbers together, and all the variables

2k+22=0

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

2k=-22

k=-22/2

k=-11

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