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Zinaida [17]
3 years ago
7

Can somebody please help me

Mathematics
1 answer:
erik [133]3 years ago
6 0

Answer:

d=3 and e=-1

Step-by-step explanation:

d+e=2

d=2-e-----(1)

d-e=4-----(2)

substituting (1) in (2)

2-e-e=4

-2e=2

e=-1-----(3)

substituting (3) in (1)

d=2-(-1)

d=3

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