lilmop42 lilmop42
  • 25-02-2020
  • Mathematics
contestada

Solve the following system by substitution method. 2x-7y=12
-x+3.5=-6

Respuesta :

chhavib chhavib
  • 25-02-2020
-x+3.5=-6
x= 3.5+6 = 9.5


2x-7y = 12
2(9.5) -7y = 12
19 - 7y= 12
7y = 19-12
7y = 7
y= 1
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