Question

1)elimine os parenteses e calcule;; a) (-19) + (-11) b)(+30) - (+13)
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Answer 1

a) +(-19) +(- 11)

a) -19 - 11

a) -29

b) (+30)-(+13)

b) +30 - 13

b) + 17

Answer 2

Respostas

(a) + 30

(b) + 17