Respuesta :
Add 2 and 1
64-1•3•3+15
Multiply -1 by 3
64-3 •3 +15
Multiply -3 by 3
64-9+15
Simplify by adding and subtracting.
Subtract 55+15
Add 55 and 15
70
64-1•3•3+15
Multiply -1 by 3
64-3 •3 +15
Multiply -3 by 3
64-9+15
Simplify by adding and subtracting.
Subtract 55+15
Add 55 and 15
70