3x+19=X-19

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Solution for 3x+19=X-19 equation: 



3x+19=x-19

We move all terms to the left:

3x+19-(x-19)=0

We get rid of parentheses

3x-x+19+19=0

We add all the numbers together, and all the variables

2x+38=0

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

2x=-38

x=-38/2

x=-19

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