Question

(-7)+(-9)+12+(-16)please get up the questrongest

Answer 1

-7-9+12-16=-32+12=-20

Answer 2

-7-9=16

-16-16=-32

-32+12=20

it is best way to understand

in step 1 -and-=+

step 2 -and-=+

step 3 -and+=-