1/2(12+x)=9

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Solution for 1/2(12+x)=9 equation: 



1/2(12+x)=9

We move all terms to the left:

1/2(12+x)-(9)=0



Domain of the equation: 2(12+x)!=0

x∈R



We add all the numbers together, and all the variables

1/2(x+12)-9=0

We multiply all the terms by the denominator


-9*2(x+12)+1=0

Wy multiply elements

-18x(x+1=0

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