Question

o valor da expressao (-2-7)-(7-2)-(-7+2) e

Answer 1

(-9)-(5)-(-5)= -9-5+5= -9.

Answer 2

(-2-7)-(7-2)-(-7+2)

(- 9 ) - ( + 5) - ( - 5)

- 9 - 5 + 5

- 14 + 5

- 9