12x=5x+21,5

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Solution for 12x=5x+21,5 equation: 



12x=5x+21.5

We move all terms to the left:

12x-(5x+21.5)=0

We get rid of parentheses

12x-5x-21.5=0

We add all the numbers together, and all the variables

7x-21.5=0

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

7x=21.5

x=21.5/7

x=3+0.5/7

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