2x+2y=1280
x+z+y=820
y-x=140
then x+z+x+z=?????????

• as per ques,(x+y+z)-(x+y)=z=180
  y-x=140
  so,y=140+x
  now,2x+140=640
  x=250
  ans_2(x+z)=860
• 9 years agoHelpfull: Yes(0) No(0)
• solving we get x=250
  y=390
  z=180
  2(x+z)=860
• 9 years agoHelpfull: Yes(0) No(0)
• y=820-x-z
  x=y-140
  2(y-140)+2(820-x-z)=1280
  2y-280+1640-2y-2z=1280
  2y-280+1640-2y-1280=2z
  80=2z
  z=40
  then y-140+40+y-140+40=2y-280+80
  2y-200=0
  2y=200
  y=100
• 9 years agoHelpfull: Yes(0) No(0)
• x+y=640------(1)
  y-x=140------(2)
  from teh eq we get x=250 and y=390
  then z=180
  x+z+x+z=2(x+z)=2(250+180)
  =2(430)=860 is the answer
• 9 years agoHelpfull: Yes(0) No(0)
• 860
  x=250,y=390,z=180
• 8 years agoHelpfull: Yes(0) No(0)
• we get x=250
  y=390
  z=180
  2(x+z)=860
• 7 years agoHelpfull: Yes(0) No(0)