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2/(66+2x)=90
We move all terms to the left:
2/(66+2x)-(90)=0
Domain of the equation: (66+2x)!=0We add all the numbers together, and all the variables
We move all terms containing x to the left, all other terms to the right
2x!=-66
x!=-66/2
x!=-33
x∈R
2/(2x+66)-90=0
We multiply all the terms by the denominator
-90*(2x+66)+2=0
We multiply parentheses
-180x-5940+2=0
We add all the numbers together, and all the variables
-180x-5938=0
We move all terms containing x to the left, all other terms to the right
-180x=5938
x=5938/-180
x=-32+89/90
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