Question

Which equation is equivalent to 3[x + 3(4x – 5)] = 15x – 24?

Answer 1

no

to simplify left hand side do the inside parentheses first
3{x +3(4x - 5)}
3(x + 12 x -15)
3(13x -15)
39x -45

right hand side can be written as 3(5x -8)

3(13x - 15) is not = 3(5x - 8)