How do you work out this math problem? ? 5x-9=-3x-12+5x

Hᴇʏ! Hope that I can help!
To do this, follow these steps.

1. Simplify the problem:    2. Subtract 2x from both: 
3. Add 9 to both sides:    
4. Divide both sides by 3: 

x = -1

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