Question

a) – (– 7) + (– 18) + 13 – (+ 9) + (+ 12) – 8 – (+ 6)

Answer 1

Resposta:

-9

Explicação passo-a-passo:

– (– 7) + (– 18) + 13 – (+ 9) + (+ 12) – 8 – (+ 6)

7 - 18 + 13 - 9 + 12 - 8 - 6

-11 + 4 + 4 - 6

-7 + 4 - 6

-3 - 6

-9

Bons estudos.

Answer 2

Resposta:

$\sf \displaystyle - (- 7) + (- 18) + 13 - (+ 9) + (+ 12) -8 - (+ 6) =$

$\sf \displaystyle +7 -18 + 13 - (+ 9) + (+ 12) -8 - (+ 6) =$

$\sf \displaystyle -11 + 13 - (+ 9) + (+ 12) -8 - (+ 6) =$

$\sf \displaystyle + 2 - (+ 9) + (+ 12) -8 - (+ 6) =$

$\sf \displaystyle + 2 -9 + (+ 12) -8 - (+ 6) =$

$\sf \displaystyle -7 + (+ 12) -8 - (+ 6) =$

$\sf \displaystyle -7 + 12 -8 - (+ 6) =$

$\sf \displaystyle +5 -8 - (+ 6) =$

$\sf \displaystyle -3 - (+ 6) =$

$\sf \displaystyle - 3 - 6 =$

$\boldsymbol{ \sf \displaystyle - 9 }$

Explicação passo-a-passo: