vallo4pezSarjr vallo4pezSarjr
  • 11-02-2016
  • Mathematics
contestada

How many solutions does this system have? x-2y=2 y=-2+5
a. infinitely many solutions
b. no solutions
c. two solutions
d. one solution

Respuesta :

zerofrancisco zerofrancisco
  • 17-02-2016
the system has one solution, x = 8, y = 3
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CarlosFernandezVega
CarlosFernandezVega CarlosFernandezVega
  • 17-02-2016
In an equation system you'll have:

- System with more questions than equations: infinite solutions
- System with the same number of questions as equations: only one solution with as many answers as questions
- System with two or more independent and contradictory equations: zero solutions.

In this case you have two independent equations and two questions (x and y), so the answer is d, one solution.
Answer Link

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