(2x+20)=45

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Solution for (2x+20)=45 equation: 



(2x+20)=45

We move all terms to the left:

(2x+20)-(45)=0

We get rid of parentheses

2x+20-45=0

We add all the numbers together, and all the variables

2x-25=0

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

2x=25

x=25/2

x=12+1/2

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