Question

Quanto seria? (-4+20):(-8)= b)(-6-14):(-6-1)= c)(-8).(+3)-(-15):(+3)= d)[-8+(-4).(-3)]:(-1-1)=

Answer 1

a) (-4+20)/(-8)
16/(-8)
-2

b) (-6-14)/(-6-1)
(-20)/(-6-1)
(-20)/(-7)
$\frac{-20}{-7} \\\\ \frac{20}{7} \\\\ 2 \frac{6}{7}$

c) (-8)*(+3)-(-15)/(+3)
(-8)*3-(-15)/(+3)
(-8)*3-(-15)/3
-24-(-15)/3
-24-(-5)
-24+5
-19

d) -8+(-4)*(-3))/(-1-1)
(-8+(-4)*(-3))/(-2)
(-8+12)/(-2)
4/(-2)
-2