johnsonsavannah johnsonsavannah
  • 21-02-2017
  • Mathematics
contestada

find the value of y when x equals -20


x+3y=7

Respuesta :

Аноним Аноним
  • 21-02-2017
x=-20


Plug in -20 into the equation to get y.


-20+3y=7


3y=27


y=9
Answer Link
SuperLegend
SuperLegend SuperLegend
  • 21-02-2017
x+3y=7
Substitute -20 for x
-20+3y=7
Add 20 to both sides
3y=27
Divide 3 on both sides
Final Answer: y=9
Answer Link

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