Mason says that (12x + 4) - (-3x + 5) and 15x - 1 are equivalent. Is he correct? Explain

Yes

Step-by-step explanation:

12x minus - 3x is the same as adding two positives. That gives us 15x. 4 - 5 is - 1. Putting the two simplified parts of the expression together, we get 15x - 1. Mason is correct.

yes

Step-by-step explanation:

12x+4 - (-3x+5) = 15x-1

12x+4+3x-5=15x-1

15x-1=15x-1

yes theyre equal