2=-1+z/2

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Solution for 2=-1+z/2 equation: 



2=-1+z/2

We move all terms to the left:

2-(-1+z/2)=0

We add all the numbers together, and all the variables

-(z/2-1)+2=0

We get rid of parentheses

-z/2+1+2=0

We multiply all the terms by the denominator


-z+1*2+2*2=0

We add all the numbers together, and all the variables

-1z+6=0

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

-z=-6

z=-6/-1

z=+6

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