4=z/8.1

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Solution for 4=z/8.1 equation: 



4=z/8.1

We move all terms to the left:

4-(z/8.1)=0

We add all the numbers together, and all the variables

-(+z/8.1)+4=0

We get rid of parentheses

-z/8.1+4=0

We multiply all the terms by the denominator


-z+4*8.1=0

We add all the numbers together, and all the variables

-1z+32.4=0

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

-z=-32.4

z=-32.4/-1

z=32+0.4/1

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