Answer:
Infinitely many solutions
Step-by-step explanation:
3(x+5) = 7x + 12 - 4x + 3
3x + 15 = 7x + 12 - 4x + 3
3x + 15 = 3x + 12 + 3
3x + 15 = 3x + 15
They are the same equation, therefore there are infinitely many solutions.
