1+18k+20k=13k+18k-13

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Solution for 1+18k+20k=13k+18k-13 equation: 



1+18k+20k=13k+18k-13

We move all terms to the left:

1+18k+20k-(13k+18k-13)=0

We add all the numbers together, and all the variables

18k+20k-(31k-13)+1=0

We add all the numbers together, and all the variables

38k-(31k-13)+1=0

We get rid of parentheses

38k-31k+13+1=0

We add all the numbers together, and all the variables

7k+14=0

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

7k=-14

k=-14/7

k=-2

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