Question

b (-11) c (7-4)+ (4-7) d 2+5. (-3)-(-4)

Answer 1

b) - 11

c)
 (7 - 4) + (4 - 7) = 3 + ( - 3) = 3 - 3 = 0

d)
= 2 + 5.( - 3) - ( - 4)
= 2 - 15 + 4
= 2 + 4 - 15
= 6 - 15
= - 9