carinadanielamorar25 carinadanielamorar25

09-02-2021
Mathematics

contestada

Eliminations equations

9x - 4y = 19
4x+ 4y = 20

Respuesta :

09-02-2021

Answer:

a) x=23/9 or 2 5/9 or 2.5

b) x=5-y

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