Respuesta :
first u subtract 19-4= 15 and then b= 15. So then 4+15=19. B=15
Hope this helps!
Hope this helps!
It would be 15.
Here's how:
Ask yourself what's the opposite of addition, that's subtraction.
4 - 19
Here's how:
Ask yourself what's the opposite of addition, that's subtraction.
4 - 19