Question

Procedimiento de (9+5)-(8+5)+(13+11) Y procedimiento de -[-8+(4-7)+(2-5-3)]+[(6-3)-(2-5-6)-12]

Answer 1

(9+5)-(8+5)+(13+11)

(14) - (+13) + (24)

14 - 13 + 24

1 + 24

25

-[-8+(4-7)+(2-5-3)]+[(6-3)-(2-5-6)-12]

-[-8+(-3)+(2-8)]+[(+3)-(2-11)-12]

-[-8 -3 + (-6) ] + [+3 -(-9)-12]

- [-8 -3 -6 ] + [+3 +9 -12]

- [-17] + [+12 -12]

+17 + {0]

+17