2.x+3=45

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Solution for 2.x+3=45 equation: 



2.x+3=45

We move all terms to the left:

2.x+3-(45)=0

We add all the numbers together, and all the variables

2.x-42=0

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

2.x=42

x=42/2.

x=21

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