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20=5/2x+45
We move all terms to the left:
20-(5/2x+45)=0
Domain of the equation: 2x+45)!=0We get rid of parentheses
x∈R
-5/2x-45+20=0
We multiply all the terms by the denominator
-45*2x+20*2x-5=0
Wy multiply elements
-90x+40x-5=0
We add all the numbers together, and all the variables
-50x-5=0
We move all terms containing x to the left, all other terms to the right
-50x=5
x=5/-50
x=-1/10
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