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Solve the system is equations and choose the correct answer from the list of options. d+e=15 -d+e=-5 Label the ordered pairs as (d,e).

Solve the system is equations and choose the correct answer from the list of options. d+e=15 -d+e=-5 Label the ordered pairs as (d,e).
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1 vote
Solve the system is equations and choose the correct answer from the list of options.

d+e=15

-d+e=-5

Label the ordered pairs as (d,e).

asked
User Eric Yuan
by
8.7k points

1 Answer

5 votes
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)
answered
User Anthony Jack
by
8.5k points
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