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21-6/5x=-6/5x+21
We move all terms to the left:
21-6/5x-(-6/5x+21)=0
Domain of the equation: 5x!=0
x!=0/5
x!=0
x∈R
Domain of the equation: 5x+21)!=0We get rid of parentheses
x∈R
-6/5x+6/5x-21+21=0
We multiply all the terms by the denominator
-21*5x+21*5x-6+6=0
We add all the numbers together, and all the variables
-21*5x+21*5x=0
Wy multiply elements
-105x+105x=0
We add all the numbers together, and all the variables
=0
x=0/1
x=0
Równanie nie ma rozwiązania
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