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29-01-2021
Mathematics

contestada

-7x – 4y = 11
7x + 4y = 20

Respuesta :

sqdancefan sqdancefan

29-01-2021

9514 1404 393

Answer:

no solution

Step-by-step explanation:

Adding the two equations gives you ...

(-7x -4y) +(7x +4y) = (11) +(20)

0 = 31 . . . . . . false

No values of the variables will make this equation true. There is no solution.

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