Question

sumas algebraicas
5+7-2-4=
2-6+4-9=
9-6-7+2=
-4-5+3+8=
​

Answer 1

Respuesta:

5+7-2-4= 6

2-6+4-9= -9

9-6-7+2= -2

-4-5+3+8= 2