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11-01-2022
Mathematics

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Find the value of a that makes the ordered pair a solution of the equation
9x - 5y = -9;(a-1,9)
help

Respuesta :

11-01-2022

Answer:

a = 5

Step-by-step explanation:

assuming (a-1, 9) is in the form of (x,y):

9(a-1) - 5(9) = -9

9a - 9 - 45 = -9

9a = 45

a = 5

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