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Butoxors [25]
3 years ago
13

Solve the system is equations and choose the correct answer from the list of options.

Mathematics
1 answer:
bonufazy [111]3 years ago
5 0
D+e=15
-d+e=-5 
The ds cancel out so
e=15
e=-5
Add both sides of equations together
2e=10
Divide by 2
e=5 

Substitute 5 for e in either equation:
d+5=15
Subtract 5
d=10

(10,5)
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