alyssavigil8 alyssavigil8
  • 20-06-2018
  • Mathematics
contestada

2x + 4y = 16 , 2x - 4y = 0

Respuesta :

kanest
kanest kanest
  • 20-06-2018
We can combine the two equations to eliminate a variable, as the coefficients for y in both equations are opposite numbers.

Combine the equations:

[tex]4x = 16[/tex]

Divide both sides by 4 to get x by itself:

[tex]x = 4[/tex]

Plug this value into one of the equations:

[tex]2(4) + 4y = 16[/tex]
[tex]8 + 4y = 16[/tex]

Subtract 8 from both sides:

[tex]4y = 8[/tex]

Divide both sides to get y by itself:

[tex]y = 2[/tex]

The answer is 'x = 4, y = 2'.
Answer Link

Otras preguntas

(xy) (6xy) (6x^2y^8) =
Knight is an example of an Anglicized word. true. or false?
Why did Spain's king and queen decide to support Columbus' first voyage?
Who was George Whitefield?
Define popular press source in your own words
Why did England pass the Navigation Acts?
An egg seller finds 432 eggs are either spoiled or broken and 1080 eggs are in good condition. Find the ratio of bad eggs to good eggs.
Mark the four sentences that are true. 1.The Republican Party began as a series of anti-slavery political meetings held in the Midwest in 1854. 2.Rural areas te
Please help ASAP! I need this and i am so confused!
My mom gave me a Kool Action game for my birthday on October 27, 2010, and I was SO excited. When I opened it, I could see that parts were missing, so we went b