luizombieonp5lcxi luizombieonp5lcxi
  • 14-03-2018
  • Mathematics
contestada

show your work solve the system
3x-5y=-1
2x+7y=20

Respuesta :

dylanh913 dylanh913
  • 14-03-2018
You can just do this on a calculator
Answer Link
BellaPrincess
BellaPrincess BellaPrincess
  • 14-03-2018
Step 1: Solve 3x−5y=−1 for x
Add 5y to both sides
Divide both sides by 3
Substitute 5/3y + -1/3, for x.
Simplify both sides of the equation
Add 2/3 to both sides
Divide both sides by 3 and 1/3

Y=2 

Substitute 2 for y in x = 5/3y + -1/3
Simplify both sides of the equation

X=3


Answer Link

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