Question

(+4)+(-6)-(+7)-(-6)+(+7)=
(-3)-(-5)+(-6)+(+8)-(-4)=​

Answer 1

Explicação passo-a-passo:

(+4)+(-6)-(+7)-(-6)+(+7)

4-6-7+6+7

-2-7+6+7

-9+6+7

-3+7

4

__________________

(-3)-(-5)+(-6)+(+8)-(-4)

-3+5-6+8+4

2-6+8+4

-4+8+4

4+4

8