115k views
4 votes
Solve the system of equations and choose the correct answer from the list of options.

d + e = 15
-d + e = -5
Label the ordered pair as (d, e).
O (0, 0)
O (10,-5)
O (5, 10)
O (10,5)

User Mamady
by
7.5k points

1 Answer

1 vote

9514 1404 393

Answer:

d. (10, 5)

Explanation:

Add the two equations, and you get ...

2e = 10

e = 5

Solve the first one for d and you have ...

d = 15 -e

d = 15 -5 = 10

So, the solution is ...

(d, e) = (10, 5) . . . . . matches the last choice

_____

Check

d + e = 10 + 5 = 15

-d + e = -10 +5 = -5

User MrPickles
by
7.8k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories