20=-16+4/9z

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Solution for 20=-16+4/9z equation: 



20=-16+4/9z

We move all terms to the left:

20-(-16+4/9z)=0



Domain of the equation: 9z)!=0

z!=0/1

z!=0

z∈R



We add all the numbers together, and all the variables

-(4/9z-16)+20=0

We get rid of parentheses

-4/9z+16+20=0

We multiply all the terms by the denominator


16*9z+20*9z-4=0

Wy multiply elements

144z+180z-4=0

We add all the numbers together, and all the variables

324z-4=0

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

324z=4

z=4/324

z=1/81

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