3 years ago

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

1 answer:

8 0

We can solve this system of equation by reduction method.
  d+e=15
-d+e=-5
-------------------
2e=10   ⇒e=10/2=5

-(d+e=15)
-d+e=-5
-----------------
-2d=-20   ⇒d=-20/-2=10

therefore: d=10; e=5

Answer: d.(10,5)

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