x+x+x+3=45

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Solution for x+x+x+3=45 equation:



x+x+x+3=45
We move all terms to the left:
x+x+x+3-(45)=0
We add all the numbers together, and all the variables
3x-42=0
We move all terms containing x to the left, all other terms to the right
3x=42
x=42/3
x=14

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