5x+21=12x+14=20x+34

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Solution for 5x+21=12x+14=20x+34 equation: 



5x+21=12x+14=20x+34

We move all terms to the left:

5x+21-(12x+14)=0

We get rid of parentheses

5x-12x-14+21=0

We add all the numbers together, and all the variables

-7x+7=0

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

-7x=-7

x=-7/-7

x=1

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