Del1923 Del1923
  • 17-02-2017
  • Mathematics
contestada

5x-2y=30 when x=8 what's y?

Respuesta :

rosie2021295 rosie2021295
  • 17-02-2017
5(8)-2y=30
40-2y=30
2y=10
y=5
Answer Link
283829nr 283829nr
  • 17-02-2017
5x-2y=30 when x=8

First: Plug in your y
It should look like: 5(8)-2y=30
Next: You will simplify 
It should look like: 40-2y=30
Then: You would subtract 40 on each side
It should look like: 2y=-10
Last: You will divide each side by -2
You should get: y=5 as your answer

HOPE THIS HELPS! ^_^
Answer Link

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