Bdall25
Bdall25 Bdall25
  • 06-05-2017
  • Mathematics
contestada

4x + 2y = 8 16x - y = 14

Respuesta :

cher
cher cher
  • 07-05-2017
Equation 1)  4x + 2y = 8
Equation 2)  16x - y = 14

Multiply all of equation 2 by 2.

2)  2(16x - y = 14)

2)  32x - 2y = 28
1)  4x + 2y = 8

Add equations together.

36x = 36

Divide both sides by 36.

x = 1

Plug in 1 for x in the first equation.

4x + 2y = 8

4(1) + 2y = 8

4 + 2y = 8

Subtract 4 from both sides.

2y = 8 - 4

2y = 4

Divide both sides by 2.

y = 4/2

y = 2

So, x = 1, y = 2

~Hope I helped!~
Answer Link

Otras preguntas

A 26’ long painting is how many yards long?
what is 10 times as much as 60000
Write a numerical or variable expression for each quantity! 1) two dozen eggs (numerical) 2) d dozen eggs (variable) 3) the value in cents of 7 nickels (numeri
Describe the story that anthropologists think the bones and tools they have discovered reveal about prehistory
18+m/4=24 solve for m
true or false In the world war 2 the us fought with Hitler to defeat England
scientific notation for 100,000
Identify what SI unit replaces the pound.What does this measure?
The equation of a line is x + 5y = 12. What is the y-intercept of the line?
Solve the problem by graphing 4x-2y=22 6x+9y=-3