20k+4=90

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Solution for 20k+4=90 equation: 



20k+4=90

We move all terms to the left:

20k+4-(90)=0

We add all the numbers together, and all the variables

20k-86=0

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

20k=86

k=86/20

k=4+3/10

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