x+(-3)=20

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Solution for x+(-3)=20 equation: 



x+(-3)=20

We move all terms to the left:

x+(-3)-(20)=0

determiningTheFunctionDomain
x-20+(-3)=0

We add all the numbers together, and all the variables

x-23=0

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

x=23

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