mb897 mb897
  • 22-11-2019
  • Mathematics
contestada

Solve the system of equations by substitution : −5x+2y=9 y=7x

Respuesta :

anne2833
anne2833 anne2833
  • 22-11-2019
Question
-5x+2y=9 y=7x

Answer
-5x+2y=9 y=7x

-5x+2y=7x

9y=7x

Simplify the expression
-12x+2y=0
9y=7x

-12x+2y=0
-7x+9y=0

84x-14y=0
-7x+9y=0

84x-14y=0
-84x+108y=0

94y=0

y=0


-12x+2x0=0

x=0

(x, y)= (0,0)

-5x0+2x0=9x0=7x0

0=0=0

(x, y)=(0,0)

Ur welcome even tho idk if u wanted it like that my back hurts after that lol like I was moving
Answer Link

Otras preguntas

2,4,6,8.....,86 Is finite or infinite
people who perform religious ceremonies
in its argument to make flag burning a criminal offense what events did Texas predict what events did texas predict might happen if a flag is burned
Which of the following is not an object in our solar system? Star Black hole Asteroid Comet
1. Your roommate's long hours in chem lab finally paid off--she discovered a secret formula that lets people do an hour's worth of studying in 5 minutes. So far
Which of the following types of weather data is collected in inches or centimeters? A. air pressure B.cloud cover C. rainfall D. wind speed
A board is cut into two pieces. one piece has a length of 51 inches. if the other piece has a length of w inches, what was the total length of the board, in inc
According to Rilke' where should the poet find beauty?
What are the different ways to greet people in Spanish-speaking countries?
ENGLISH HELP 3 How can you determine the topic of a paragraph? a. Ask yourself who or what the paragraph is about. b. Read the first sentence of the