1/2-x+7=21

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Solution for 1/2-x+7=21 equation: 



1/2-x+7=21

We move all terms to the left:

1/2-x+7-(21)=0

determiningTheFunctionDomain
-x+7-21+1/2=0

We add all the numbers together, and all the variables

-1x-14+1/2=0

We multiply all the terms by the denominator


-1x*2+1-14*2=0

We add all the numbers together, and all the variables

-1x*2-27=0

Wy multiply elements

-2x-27=0

We move all terms containing x to the left, all other terms to the right

-2x=27

x=27/-2

x=-13+1/2

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