Tarmarra21
Tarmarra21 Tarmarra21
  • 03-03-2017
  • Mathematics
contestada

Solve the system of equations and choose the correct ordered pair. 

2y = 8x - 14
4y = 8x + 4


Solve the system of equations and choose the correct ordered pair 2y 8x 144y 8x 4 class=

Respuesta :

wolf1728
wolf1728 wolf1728
  • 03-03-2017
A) 2y = 8x - 14
B) 4y = 8x + 4
Multiplying Equation "A" by -1

A) -2y = -8x +14 Then adding it to B
B) 4y = 8x + 4
2y = 18
y = 9
A) 2y = 8x - 14
A) 18 = 8x -14
A) 32 = 8x
x=4


Answer Link
morgaine816
morgaine816 morgaine816
  • 03-03-2017
-1(4y=8x+4)=-4y=-8x-4
+2y=8x-14
=========
-2y=-18
y=9

Then plug in y
2(9)=8x-14
18+14=8x
32/8=x
x=4
Answer Link

Otras preguntas

What is the midpoint of this interval? 50 < x ≤ 60​
Make a title about the short paragraph and write a statement that is your own opinion about the paragraph
Factorise x squared - 5x - 6
King George had to pay the soldiers. What did he do to pay them?
please help me with the question in the picture
how can asking for help with your work be an advantage​
If yesterday's day after tomorrow is Sunday, what day is tomorrow's day before yesterday?
If 2 over 5 tons of concrete covers 5 over 6 of a wall, how many tons of concrete are required to cover the entire wall? A. 12 over 25 ton B. 3 over 5 ton C. 1
Why do some people oppose cultural diffusion in their countries? A. They worry that it promotes the spread of authoritarianism instead of democracy. B. They fee
3. In the accompanying diagram, a rectangular container with the dimensions 10 inches by 15 inches by 20 inches is to be filled with water, using a cylindrical