Question

quien me ayuda por favor!!!!
1... (-8)+[(+7)-(-4)+(-5)]=

2.. (+9)-[(+3)-(3-12)-(+8)]=

3..[(+6)-(-8)]-[(-4)-(-10)]=

Answer 1

Resolver

(-8)+[(+7)-(-4)+(-5)]

(-8)+[(7+4-5)]

(-8)+[11-5]

-8+6

-2

(+9)-[(+3)-(3-12)-(+8)]

(+9)-[3-3-12-8]

(+9)-[3-23]

9-3-23

9-26

17

[(+6)-(-8)]-[(-4)-(-10)]

[6+8]-[-4+10]

14-6

8