Question

3. (+3) + (+21) + (-15) =
4. (-5 ) + (+7) + (- 12) =
5. (+14) + (-9 ) + (- 7) =

Answer 1

Respuesta:

$( + 3) + ( + 21) + ( - 15) = 9$

$( - 5) + ( + 7) + ( - 12) = - 10$

$( + 14) + ( - 9) + ( - 7) = - 2$