Question

7.(2-5)=
5.(-3-1)=
(-8+1).(-3)
(-2-3-1).(-4)​

Answer 1

7.(2-5)=14-35=-21

5.(-3-1)=-15-5=-20

'1.'(-8+1).(-3)=-8+1.(-3)=-7.(3)=-21

'1.'(-2-3-1).(4)=-2-3-1.(-4)=-6.(-4)=24