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-6+4/5r=7
We move all terms to the left:
-6+4/5r-(7)=0
Domain of the equation: 5r!=0We add all the numbers together, and all the variables
r!=0/5
r!=0
r∈R
4/5r-13=0
We multiply all the terms by the denominator
-13*5r+4=0
Wy multiply elements
-65r+4=0
We move all terms containing r to the left, all other terms to the right
-65r=-4
r=-4/-65
r=4/65
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