Answer:
the pair solution is : (10;5)
Step-by-step explanation
d + e = 15
....(1)
–d + e = –5
....(2)
add (1) and (2) : 2e =10
e = 5
put the value of : e in (1) or (2) : d + 5 = 15
d = 10
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Hope this helps
His location would be 20 feet above the sea level because...
30+-10= 20 because adding a negative to a positive is basically like subtracting.
Can have a brainliest answer now please?
