Answer:
1 ) - 15
2 ) 21
3 ) 49
4 ) 39
5 ) 89
Step-by-step explanation:
1 )
( - 8 ) + ( - 7 )
= - 8 - 7
= - 15
2 )
( + 12 ) + ( + 9 )
= 12 + 9
= 21
3 )
( - 43 ) + ( - 6 )
= - 43 - 6
= - 49
4 )
( + 23 ) + ( + 16 )
= 23 + 16
= 39
5 )
( + 73 ) + ( + 16 )
= 73 + 16
= 89
