21z/2=-z

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Solution for 21z/2=-z equation: 



21z/2=-z

We move all terms to the left:

21z/2-(-z)=0

We add all the numbers together, and all the variables

21z/2-(-1z)=0

We get rid of parentheses

21z/2+1z=0

We multiply all the terms by the denominator


21z+1z*2=0

Wy multiply elements

21z+2z=0

We add all the numbers together, and all the variables

23z=0

z=0/23

z=0

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