amelia0 amelia0
  • 09-10-2017
  • Mathematics
contestada

-8x+4y=28 solve for y

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dodateodoraoxjbjm dodateodoraoxjbjm
  • 09-10-2017
This is how I would do it:
-8x=28-4y divide the entire equation by 4
-2x=7-y Put y back on the left and put x on the right 
y=7-2x.
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jordanadams1994
jordanadams1994 jordanadams1994
  • 09-10-2017
-8x+4y=28 You need to subtract -8x from both sides leaving:
4y=8x+28 From here you need to divide by 4 on both sides leaving:
y= 8x+28/4 Simplify:
y=2x+7


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