arianaguerin
arianaguerin arianaguerin
  • 18-10-2018
  • Mathematics
contestada

plz help me with this

plz help me with this class=

Respuesta :

zayn1432 zayn1432
  • 20-10-2018
2x-7y=18 _(1)
-2x+4y=5

11y=23 , Y=23/11 sub in 1

2x-7×23/11=18

2x = 18×11 + 7×23

x = ( 198 + 161 )/2 = 359/2
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