Question

5 + [7 − (8 + 4) + 6] =
= 34 − {9 + [−15 − (−8) + 13]} =
= 4 + [8 − (5 − 2) + (7 − 3)] + [−3 − (−8) + 13]

Answer 1

Explicación paso a paso:

1)

5 + [7 − (8 + 4) + 6] =

5 + [7 − (12) + 6] =

5 + [7 − 12 + 6] =

5 + [1] =

5 + 1 =6

2)

34 − {9 + [−15 − (−8) + 13]} =

34 − {9 + [−15 + 8 + 13]} =

34 − {9 + [6]} =

34 − {9 + 6} =

34 − {15} =

34 – 15 = 19

4 + [8 − (5 − 2) + (7 − 3)] + [−3 − (−8) + 13]=

4 + [8 − 3 + (4)] + [−3 +8 + 13]=

4 + [8 − 3 + 4] + [−3 +8 + 13]=

4 + [9] + [18]=

4 + 9 + 18= 31