3x-12=2x+5=4x+20

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Solution for 3x-12=2x+5=4x+20 equation: 



3x-12=2x+5=4x+20

We move all terms to the left:

3x-12-(2x+5)=0

We get rid of parentheses

3x-2x-5-12=0

We add all the numbers together, and all the variables

x-17=0

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

x=17

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