Question

(5-6+3-1)-(1-7+10+1)

Answer 1

$(5-6+3-1)-(1-7+10+1)=(8-7)-(12-7)=1-5=-(5-1)=-4$

Answer 2

(5-6+3-1)-(1-7+10+1)=(8-7)-(12-7)=1-5=-4..............................................