Question

-6+(5-9+2-3+4)-7-(-9+2+4+1)

Answer 1

-6+(5-9+2-3+4)-7-(-9+2+4+1)
-6+(-1)-7-(-2)
-6-1-7+2
-12

Answer 2

4+2=6-3=3+4=7-7=0-9=0+2+4+1=7 aver su te sirve de algo