banks4hunnid banks4hunnid
  • 04-04-2016
  • Mathematics
contestada

What is the solution to the system of equations?

y=3x+6
3x-y=6

Respuesta :

meerkat18
meerkat18 meerkat18
  • 04-04-2016
1st equation: y = 3x + 6
2nd equation: 3x - y = 6

Substitute the y in the 2nd equation by its value in the 1st equation.

y = 3x + 6
3x - y = 6

3x - (3x + 6) = 6
3x - 3x - 6 = 6
-6 = 6 NOT A SOLUTION

3x -y = 6
3x = 6 + y
x = (6 + y)/3

y = 3x + 6
y = 3((6+y)/3) + 6
y = 6 + y + 6
y = 12 + y
y - y = 12
0 = 12 NOT A SOLUTION
Answer Link

Otras preguntas

the wires inside a cable each have there own plastic insulation .why does the insulasion have diffrent colours
what changes in england helped motivate colonists to settle in north america
The rhythmic patterns of Indian music are called A. pungis. B. talas. C. veenas. D. tablas.
Solve log (base 5)(9x-4)=1
How many integers less than one billion are very round numbers
What's the. Value of 3 in 230, 001
For a conclusion to be accepted by the scientific community, the data must be accurate, free from error, and A.reproducible. B.varied. C.unique. D.surprising
Identify the correct sentence. a. Drive South on Park road until you reach Euclid avenue. b. Drive south on Park Road until you reach Euclid Avenue. c. Drive
What is the solution to the equation? 32 - 6x + 7x = -15 + 28 X =??
List 3 equivalent ratios of 5/2