20*x^-1=4

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Solution for 20*x^-1=4 equation: 



20x^-1=4

We move all terms to the left:

20x^-1-(4)=0

We add all the numbers together, and all the variables

20x-5=0

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

20x=5

x=5/20

x=1/4

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