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28-05-2020
Mathematics

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5x - 4y = 19
x + 2y =8

Respuesta :

28-05-2020

x + 2y = 8
x = -2y + 8
5x - 4y = 19
5(-2y + 8) - 4y = 19
-10y + 40 - 4y = 19
-14y = -21
y = -21/-14
y = 3/2
x + 2(3/2) = 8
x + 3 = 8
x = 5
Answer: x = 5
y = 3/2

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