10=1/3r-(-7)

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Solution for 10=1/3r-(-7) equation:



10=1/3r-(-7)
We move all terms to the left:
10-(1/3r-(-7))=0
Domain of the equation: 3r-(-7))!=0
r∈R
We multiply all the terms by the denominator
-(1+10*3r-(-7))=0
We calculate terms in parentheses: -(1+10*3r-(-7)), so:
1+10*3r-(-7)
determiningTheFunctionDomain 10*3r+1-(-7)
We add all the numbers together, and all the variables
10*3r+8
Wy multiply elements
30r+8
Back to the equation:
-(30r+8)
We get rid of parentheses
-30r-8=0
We move all terms containing r to the left, all other terms to the right
-30r=8
r=8/-30
r=-4/15

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