Question

If [(13) + 27] + (−21) = (13) + [27 + x], then x =

Answer 1

Answer:

[40]-(21) = 13+[27+x]

19-13 = (27+x)

5-27 = x

x = -22

Answer 2

Answer:

13+27= 40

40+-21=19

19-13=[27 + x]

6=27 + x

x= 6-27

x = -21