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vaieri [72.5K]
3 years ago
6

Which ordered pair (c, d) is the solution to the given system of linear equations?

Mathematics
2 answers:
olga2289 [7]3 years ago
4 0

Answer:

a

Step-by-step explanation:

i got it right on edge

sasho [114]3 years ago
3 0

Answer:

(-1,6)

Step-by-step explanation:

The missing part of this question is the system given as;

-c+2d=13

-9c-4d=-15

We solve for c in the top equation to get:

c=2d-13

Substitute c=2d-13 into the bottom equation to get:

-9(2d-13)-4d=-15

Expand to get:

-18d+117-4d=-15

Group similar terms to get:

-18d-4d=-15-117

-22d=-132

d=6

Put d=6 into c=2d-13 to get:

c=2*6-13

c=12-13=-1

The solution is (-1,6)

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