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2/3(r+8)-8=12
We move all terms to the left:
2/3(r+8)-8-(12)=0
Domain of the equation: 3(r+8)!=0We add all the numbers together, and all the variables
r∈R
2/3(r+8)-20=0
We multiply all the terms by the denominator
-20*3(r+8)+2=0
Wy multiply elements
-60r(r+2=0
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