20.8=4(z+1.)

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Solution for 20.8=4(z+1.) equation: 



20.8=4(z+1.)

We move all terms to the left:

20.8-(4(z+1.))=0

We add all the numbers together, and all the variables

-(4(z+1))+20.8=0



We calculate terms in parentheses: -(4(z+1)), so:

4(z+1)

We multiply parentheses

4z+4

Back to the equation:

-(4z+4)



We get rid of parentheses

-4z-4+20.8=0

We add all the numbers together, and all the variables

-4z+16.8=0

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

-4z=-16.8

z=-16.8/-4

z=4+0.8/4

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