-0.3k+1.4=4.2-0.1k

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Solution for -0.3k+1.4=4.2-0.1k equation: 



-0.3k+1.4=4.2-0.1k

We move all terms to the left:

-0.3k+1.4-(4.2-0.1k)=0

We add all the numbers together, and all the variables

-0.3k-(-0.1k+4.2)+1.4=0

We get rid of parentheses

-0.3k+0.1k-4.2+1.4=0

We add all the numbers together, and all the variables

-0.2k-2.8=0

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

-0.2k=2.8

k=2.8/-0.2

k=-13+0.2/0.2

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