kaseyhill12
kaseyhill12 kaseyhill12
  • 14-02-2017
  • Mathematics
contestada

substitute method
x+4y=8
y=2x-7

Respuesta :

heartycookie heartycookie
  • 14-02-2017
×+4 (2x-7)=8
x+8x-28=8
9x=36
×=4
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