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

5 to the second power minus two (4-1)
A number added to 9 is the same as twice the number what is the number ?
Three benefits of the plow are _____.
identify the preposition in the following sentence the boy is hiding under the table​
hey puddin could ya help me !?- What is the length of segment AB?
DNA and RNA are A) proteins B) lipids C) starches D) nucleic acids
Born global firms are _______. Question 2 options: A. companies that forgo the domestic focus stage of the internationalization process B. companies that focus
Large plants are most likely to be found in the - zone of a lake. O A. benthic B. limnetic O c. littoral O D. profundal
Escoge la respuesta correcta. Carlos y Sofía la oportunidad de ver a los monos en Cayo Santiago. ANSWERS: tendrand sabran vendran saldran
1. Felipe y Silvia que no les gusta ir a la playa. 2. Claudia le unos papeles al inglés a su hermano. 3. David su motocicleta nueva durante el fin de semana. 4.