5+2x-4/2=21

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Solution for 5+2x-4/2=21 equation: 



5+2x-4/2=21

We move all terms to the left:

5+2x-4/2-(21)=0

determiningTheFunctionDomain
2x+5-21-4/2=0

We add all the numbers together, and all the variables

2x-18=0

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

2x=18

x=18/2

x=9

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