9+2x+(-5)=12

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Solution for 9+2x+(-5)=12 equation: 



9+2x+(-5)=12

We move all terms to the left:

9+2x+(-5)-(12)=0

determiningTheFunctionDomain
2x+9-12+(-5)=0

We add all the numbers together, and all the variables

2x-8=0

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

2x=8

x=8/2

x=4

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