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4/5z=31
We move all terms to the left:
4/5z-(31)=0
Domain of the equation: 5z!=0We multiply all the terms by the denominator
z!=0/5
z!=0
z∈R
-31*5z+4=0
Wy multiply elements
-155z+4=0
We move all terms containing z to the left, all other terms to the right
-155z=-4
z=-4/-155
z=4/155
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