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

Indicate which pattern of evolution is shown by the many species of finches on the Galápagos Islands.
how might the history of california have been different if the gold rush had not happened
What events began and ended athens' golden age??
What is the biggest cause of extinction today? a. pollution b. exotic species c. global warming d. habitat loss
The length of an arc of a circle is equal to 1/5 of the circumference of the circle. If the length of the arc is 2π, the radius of the circle is
A patient needs to receive 35 mg of amoxicillin orally. The drug is available in a strength of 100 mg/tsp, How many tsp of the drug must the patient swallow to
A rectangle has an area of 30 square units and a perimeter of 34 meters.what are the dimensions of this rectangle
If 6x −3 = −5x +7, then x =? Can someone explain this one?
reduce 15 1/4 +1 1/2 +3/20 to lowest term.
Which of the following writers did not come from Ireland? a) W. B. Yeats b) James Joyce c) Seamus Heaney d) Oscar Wilde e) none of the above; all came from