zamirkid8851 zamirkid8851
  • 21-05-2020
  • Mathematics
contestada

The equation of a function is y = 10 – 9x.Find the value of x when

y = -8,


y = -26

Respuesta :

funmilaciousfunmie78
funmilaciousfunmie78 funmilaciousfunmie78
  • 22-05-2020

Answer:

x = 2, x = 4

Step-by-step explanation:

The equation y = 10 - 9x is a linear equation and the value of either y or x can be found by substituting the given values of either y or x.

given that y = -8, and substituting this into equation y = 10 - 9x,

we have, -8 = 10 - 9x

10 + 8 = 9x

9x = 18; dividing both sides by 9

x = 2

given that y = -26, and substituting this into equation y = 10 - 9x,

we have, -26 = 10 - 9x

10 + 26 = 9x

9x = 36; dividing both sides by 9

x = 4

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