Question

Necesito ayuda con estas operaciones
11-7-9+3+7+5
(+5).(-4).(+3)
(-500):(+10)
(-7).(+3)+(+4)-(2+5-1)
(-7).(+1)-[(-5)+(-2)-(-3)].(-2)

Answer 1

11-7-9+3+7+5= 10

(+5) . ( -4) . (+3) = -20 . 3 = -60

(-500) / ( +10) = -50

(-7) . (+3) + (+4) - (2+5-1 ) = (-7) . (+3) + (+4) - 6 = -21 + 4 - 6 = -23

(-7).(+1)-[(-5)+(-2)-(-3)].(-2) = (-7).(+1)- ( -4) . (-2) = (-7) +4 = -3