28x-21=9x+12

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Solution for 28x-21=9x+12 equation: 



28x-21=9x+12

We move all terms to the left:

28x-21-(9x+12)=0

We get rid of parentheses

28x-9x-12-21=0

We add all the numbers together, and all the variables

19x-33=0

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

19x=33

x=33/19

x=1+14/19

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