5x+4=3x+12=9x-19

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Solution for 5x+4=3x+12=9x-19 equation: 



5x+4=3x+12=9x-19

We move all terms to the left:

5x+4-(3x+12)=0

We get rid of parentheses

5x-3x-12+4=0

We add all the numbers together, and all the variables

2x-8=0

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

2x=8

x=8/2

x=4

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