Question

3(x+5) = 7x + 12 - 4x + 3.

Answer 1

Infinitely many solutions

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.