Respuesta :

5*3 + 9 - 6/2
= (5*3) + 9 - (6/2)
= 15 + 9 - 3
= 21
5*3+9-6/2
Solve for 5*3 and 6/2 because multiplication and division goes before addition and subtraction.
5*3=15
6/2=3
Now solve, 15+9-3=21.