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9/2x+1=4
We move all terms to the left:
9/2x+1-(4)=0
Domain of the equation: 2x!=0We add all the numbers together, and all the variables
x!=0/2
x!=0
x∈R
9/2x-3=0
We multiply all the terms by the denominator
-3*2x+9=0
Wy multiply elements
-6x+9=0
We move all terms containing x to the left, all other terms to the right
-6x=-9
x=-9/-6
x=1+1/2
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