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+35=0

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

-7x=-35

x=-35/-7

x=+5

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