Question

how to solve..........

Answer 1

HEY mate!! HERE is your answer!!

Hope it helps you.

^_^

Answer 2

15-(-3)(4-4)+3{5+(-3)*(-6)}
15-(-3(4-4))+3{5+(18)}
15-(3(0))+3(5+18)
15-0+3(23)
15+ 69
8 4