add the following
a) 15 + (-7)
b) (-12) + (21)
Answers
Answered by
0
Answer:
(a)8
(b)9
Step-by-step explanation:
mark as brilliant answer
Answered by
1
Answer:
a) 15 + (-7)
Solution:
15 - 17
-2
b) (-12) + (21)
Solution:
-12 + 21
12-21
9
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