1. –5 + (–1) + 7 PLEASE STEP BY STEP

2. 19 + (–3) + 6

1) -5+(-1)+7

-6+7

=1

2) 19+(-3)+6

16+6

=22

1: 1

2: 22

Step-by-step explanation:

1 ) -5 + (-1) is -6, because they both have the same sign.

-6+7} when there is a negative and a postive, put the postive in front

so it will look like this 7-6 which is 1

2) 19+(-3) is basically 19-3, which is 16, and 16+6=22

Extra note:

when you see n+(-n), always remove the + sign and subtract

when you see -n+n, always switch the roles of the two

when you see -n+-n, remove the - sign and add it back later

when you see -n-n, think of -n+n

I hope these helps :)

i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.

how much is coupon

step-by-step explanation: