Question

calcule as expressões

a - 58-{30+4x3-[25-(12-4)+3]}

b- {(9x4+6):7+[(15+2)x3]:17}-9

c- 9600:{[200+(3x200-500)+400x20]+4x20}

Answer 1

a)58-{30+4x3-[25-8+3]}
58-{30+4x3-20}
58-{30+12-20}
58-22 = 36

b){(36+6):7+[17x3]:17}-9
{42:7+51:17}-9
{6+3}-9
9-9 = 0
c)9600:{[200+(600-500)+8000]+4x20}
9600:{[200+100+8000]+4x20}
9600:{8300+4x20}
9600:{8300+80}
9600:8380 = 960/838 = 480/419
obs: essa letra c foi digitada certa?

Answer 2

a-) 52
b-) 0
c-) 1,145584725536992840095453937947