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  • 17-03-2021
  • Mathematics
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Solve by substitution

Solve by substitution class=

Respuesta :

john4184
john4184 john4184
  • 17-03-2021

Answer:

A

Step-by-step explanation:

y = -9 ------(1)

9x -4y = -9 -------(2)

substitute (1) into (2)

9x - 4 (-9) = -9

9x = - 45

x = -5

there you go, x = -5 and y = -9

so. (-5 , -9 )

hope this helps

please mark it brainliest

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