jack5481 jack5481
  • 18-09-2020
  • Mathematics
contestada

— 2х + y = 0
— 7х + 3y = 2

Respuesta :

angelabum04 angelabum04
  • 18-09-2020
answer : x=-2 and y=-4 or (-2,-4)
1. y=2x
-7x+3y=2

2. substitute
-7x+3(2x)=2

3. -7x+6x =2

4. -x=2
x=-2

5. sub into original equation
y=2 (-2)
y=-4
Answer Link

Otras preguntas

Give this topic sentence : Swimming is really the health exercise anyone can do. What other detailed sentence you can say about the topic sentence.
find the volume of each sphere, both in terms of pi and to the nearest tenth. use 3.14 for pi
convert to fraction .34
How is the horizontal component of velocity for a projectile affected by the vertical component?
How is the horizontal component of velocity for a projectile affected by the vertical component?
How many grams are in 11.9 moles of chromium?
find the volume of each sphere, both in terms of pi and to the nearest tenth. use 3.14 for pi
find the volume of each sphere, both in terms of pi and to the nearest tenth. use 3.14 for pi
find the volume of each sphere, both in terms of pi and to the nearest tenth. use 3.14 for pi
Anne has 24 more cards than Devi.  Anne finds that 3/5 of Devi's cards are equal to 1/2 of her cards.  How many cards does Anne have?