incipio incipio
  • 13-01-2016
  • Mathematics
contestada

what is 3x+5y=16 for y?

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taskmasters
taskmasters taskmasters
  • 13-01-2016
      16 - 3x
y = ---------
          5

3x + 5y = 16

5y = 16 - 3x
5y/5 = (16-3x)/5
y = (16-3x)/5

Assuming: x = 4
y = (16-3(4))/5
y = (16-12) / 5
y = 4/5

3x + 5y = 16
3(4) + 5(4/5) = 16
12 + 4 = 16
16 =16

Answer Link
Billymkhoi
Billymkhoi Billymkhoi
  • 13-01-2016
3x+ 5y= 16
⇒ 5y= 16 -3x
⇒ y= (16 -3x)/5

Final answer: y= (16-3x)/5~
Answer Link

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