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

The electrons sulfur (s) is most likely to form covalent bond with the element
Simplify completely quantity 6 x minus 12 over 10.
Adult male heights are normally distributed with a mean of 70 inches and a standard deviation of 3 inches. The average basketball player is 79 inches tall. App
Every evening Jenna empties her pockets and puts her change in a jar. At the end of the week she counts her money. One week she had 38 coins all of the dimes an
Distinguish between the cos of having a basic checking account and an interest-bearing checking account
Two soccer players kick the same 2-kg ball at the same time in opposite directions one kicks with a force of 15 n the other kicks with a force of 5 n what is th
a car is traveling at a rate of of 55 miles per hour. how many feet oer hour does the car travel?
11 X 11= 4, 12x12=9,13x13=?
What famous 1957 book about discontentment and disillusionment was written by jack kerouac
What feature of the current education system contributes to its nature of replicating class structures?