Question

Calcula
A/ 3 (-7-5)+7 (-11+9)-5=
B/ - 3 (-8+5)-2 (-3+9)-5 (-6-9)=
C/ - 8+4 [-3 (-5+7)-5+7)-5 (-5+10)]-5=
AyuuDa❤️️

Answer 1

Explicación paso a paso:

a) 3(-7-5)+7(-11+9)-5=

-21-15-77+63-5=

-118+63 = -55

b)-3(-8+5)-2(-3+9)-5(-6-9)=

+24-15+6-18+30+45=

105-33= 72

c) -8+4[-3(-5+7)-5+7)-5(-5+10)]-5=

-8+4[15-21-5+7+25-50]-5 =

-8+60-84-20+28+100-200-5

188-317= -129