4=1/2+z

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Solution for 4=1/2+z equation:



4=1/2+z
We move all terms to the left:
4-(1/2+z)=0
Domain of the equation: 2+z)!=0
We move all terms containing z to the left, all other terms to the right
z)!=-2
z!=-2/1
z!=-2
z∈R
We add all the numbers together, and all the variables
-(+z+1/2)+4=0
We get rid of parentheses
-z+4-1/2=0
We multiply all the terms by the denominator
-z*2-1+4*2=0
We add all the numbers together, and all the variables
-z*2+7=0
Wy multiply elements
-2z+7=0
We move all terms containing z to the left, all other terms to the right
-2z=-7
z=-7/-2
z=3+1/2

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