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2+1/2x=7
We move all terms to the left:
2+1/2x-(7)=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-5=0
We multiply all the terms by the denominator
-5*2x+1=0
Wy multiply elements
-10x+1=0
We move all terms containing x to the left, all other terms to the right
-10x=-1
x=-1/-10
x=1/10
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