jvr2312 jvr2312
  • 23-09-2020
  • Mathematics
contestada

if 3x +y=12 find x when y=-15

Respuesta :

bellazaldivar22 bellazaldivar22
  • 23-09-2020

Answer:

x=9

Step-by-step explanation:

3x+y=12

3x+(-15)=12

3x=27

3/3= 27/3

x=9

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