LINDURAUZUMAKIIN LINDURAUZUMAKIIN Matemáticas contestada !ayuuuda porfa es urgente¡a_ (+4)+(-2)+(+10)+(+6)+(-3)=???b_ (+2)-(+8)-(-9)-(-10)+(+20)=???c_ -7+(-3+9)-(+4+14)=???d_+5-[+6+(+7-2-9)]=???