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1/2(10x+20)=30=5x
We move all terms to the left:
1/2(10x+20)-(30)=0
Domain of the equation: 2(10x+20)!=0We multiply all the terms by the denominator
x∈R
-30*2(10x+20)+1=0
Wy multiply elements
-60x(1+1=0
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