Solve the system of equations and choose the correct answer from the list of options.
1 answer:
We can solve this system of equation by reduction method.
d+e=15
-d+e=-5
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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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