21/2x+7.25=79.75

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Solution for 21/2x+7.25=79.75 equation:



21/2x+7.25=79.75
We move all terms to the left:
21/2x+7.25-(79.75)=0
Domain of the equation: 2x!=0
x!=0/2
x!=0
x∈R
We add all the numbers together, and all the variables
21/2x-72.5=0
We multiply all the terms by the denominator
-(72.5)*2x+21=0
We multiply parentheses
-145x+21=0
We move all terms containing x to the left, all other terms to the right
-145x=-21
x=-21/-145
x=21/145

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