si9dcsimiksw9illi
si9dcsimiksw9illi si9dcsimiksw9illi
  • 20-09-2016
  • Mathematics
contestada

x + y = 6. 2x - y = 3. The system of equations. . . a.has no solution. b.has one solution. c.is coincident

Respuesta :

Hussain514 Hussain514
  • 22-09-2016
x + y = 6 
2x - y = 3 
3x = 9 
x = 3 
y = 3 

b) One solution is right answer
Answer Link
calculista
calculista calculista
  • 27-11-2018

Answer:

The answer is the option B

The system has one solution

Step-by-step explanation:

we have

[tex]x+y=6[/tex] ------> equation A

[tex]2x-y=3[/tex] ------> equation B

Adds equation A and equation B

[tex]x+y=6\\2x-y=3\\-------\\2x+x=6+3\\3x=9\\x=3[/tex]

Find the value of y

Substitute the value of x in equation A or equation B

[tex]3+y=6[/tex]

[tex]y=3[/tex]

therefore

The system has one solution

Answer Link

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