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-8/63z-210=42
We move all terms to the left:
-8/63z-210-(42)=0
Domain of the equation: 63z!=0We add all the numbers together, and all the variables
z!=0/63
z!=0
z∈R
-8/63z-252=0
We multiply all the terms by the denominator
-252*63z-8=0
Wy multiply elements
-15876z-8=0
We move all terms containing z to the left, all other terms to the right
-15876z=8
z=8/-15876
z=-2/3969
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