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1/4(12+x)=x-3
We move all terms to the left:
1/4(12+x)-(x-3)=0
Domain of the equation: 4(12+x)!=0We add all the numbers together, and all the variables
x∈R
1/4(x+12)-(x-3)=0
We get rid of parentheses
1/4(x+12)-x+3=0
We multiply all the terms by the denominator
-x*4(x+12)+3*4(x+12)+1=0
Wy multiply elements
-4x^2(x+12x(x+1=0
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