21/2z-3=1/2z+4

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Solution for 21/2z-3=1/2z+4 equation: 



21/2z-3=1/2z+4

We move all terms to the left:

21/2z-3-(1/2z+4)=0



Domain of the equation: 2z!=0

z!=0/2

z!=0

z∈R





Domain of the equation: 2z+4)!=0

z∈R



We get rid of parentheses

21/2z-1/2z-4-3=0

We multiply all the terms by the denominator


-4*2z-3*2z+21-1=0

We add all the numbers together, and all the variables

-4*2z-3*2z+20=0

Wy multiply elements

-8z-6z+20=0

We add all the numbers together, and all the variables

-14z+20=0

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

-14z=-20

z=-20/-14

z=1+3/7

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