anonymous
  • anonymous
how do I solve 8x + 4y = 16 on a TI 89?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Nnesha
  • Nnesha
you hve to solve for y
Nnesha
  • Nnesha
what's the statement ? do you need to graph it ? or find x-intercept .y-intercept ?
anonymous
  • anonymous
I just need to solve 8x+4y=16 and x+y=2 solve the system but I want to know how to do it on my TI89

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Nnesha
  • Nnesha
okay to put that into calculator (not online) you have to solve both equations for y
Nnesha
  • Nnesha
then press y= button type both equation Y_1= first equation y_2= 2nd equation
Nnesha
  • Nnesha
then hit the graph button
Nnesha
  • Nnesha
|dw:1441040249056:dw| when you press y= button u will see y_1= y_2= y_3= so you need to solve 8x+4y=16 for y
Nnesha
  • Nnesha
how would you cancel out `8x` from left side ?
Nnesha
  • Nnesha
x+y=2 cancel out x from left side how would you do that ? add subtract divide subtract ?
Nnesha
  • Nnesha
no |dw:1441041208353:dw| subtract x both sides

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