bespo33713 bespo33713
  • 03-05-2018
  • Mathematics
contestada

Identify the values that create ordered pairs that are solutions to the equation 3x - 5y = 20.

(5,y) (x,2)

Respuesta :

ashtoningramp69fcg ashtoningramp69fcg
  • 03-05-2018
X=10 Y=1

thats your answer hope it helps ;P
Answer Link
gmany
gmany gmany
  • 03-05-2018
3x - 5y = 20

(5; y)  -  put x = 5 to the equation

3 · 5 - 5y = 20
15 - 5y = 20  |-15
-5y = 5  |:(-5)
y = -1

Answer: (5; -1)

(x; 2)  -  put y = 2 to the equation

3x - 5 · 2 = 20
3x - 10 = 20    |+10
3x = 30    |:3
x = 10

Answer: (10; 2)
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