(0.4+k)=20

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Solution for (0.4+k)=20 equation: 



(0.4+k)=20

We move all terms to the left:

(0.4+k)-(20)=0

We add all the numbers together, and all the variables

(k+0.4)-20=0

We get rid of parentheses

k+0.4-20=0

We add all the numbers together, and all the variables

k-19.6=0

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

k=19.6

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