Question

9y – x = 17

x – 5y = 7

Halle x

Answer 1

Respuesta:

9y – x = 17

x – 5y = 7

x = -17 + 9y

x =  7 + 5y

7 + 5y = -17 + 9y

7+17 = 9y - 5y

24 = 4y

6 = y

x – 5y = 7

x - 5(6) = 7

x - 30 = 7

x = 37

9y – x = 17

54 - 37 = 17 (correcto)

Explicación paso a paso: