19x-21=12x-13

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Solution for 19x-21=12x-13 equation: 



19x-21=12x-13

We move all terms to the left:

19x-21-(12x-13)=0

We get rid of parentheses

19x-12x+13-21=0

We add all the numbers together, and all the variables

7x-8=0

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

7x=8

x=8/7

x=1+1/7

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