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7+1/2x=9
We move all terms to the left:
7+1/2x-(9)=0
Domain of the equation: 2x!=0We add all the numbers together, and all the variables
x!=0/2
x!=0
x∈R
1/2x-2=0
We multiply all the terms by the denominator
-2*2x+1=0
Wy multiply elements
-4x+1=0
We move all terms containing x to the left, all other terms to the right
-4x=-1
x=-1/-4
x=1/4
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