Ashleymackenzie2015 Ashleymackenzie2015

04-01-2016
Mathematics

contestada

How many solutions are there to the following system of equations?
5x 3y=7
2x-y=2

Respuesta :

Billymkhoi Billymkhoi

04-01-2016

5x + 3y = 7 (1)
2x - y = 2 (2)

Multiply (2) by 3:
6x - 3y = 6 (3)

Take (1) + (3):
(5x + 6x) + (3y-3y) = 7+6
⇒ 11x = 13
⇒ (11/11)*x= 13/11
⇒ x = 13/11.

y = 2*13/11 -2= 4/11

The final answer is x=13/11, y=4/11.

Answer Link

Otras preguntas

Help me asap please. ???

when were the first settlements on the Gaza strip

What six steps occur in a criminal case between arrest of a suspect and sentencing?

Suppose that 19years ago, a benefactor set up an account for your education. This benefactor made a single deposit of $20,000 that has been earning 6% interest

Which of the following should you consider before planning a speech

During swallowing, the air passageway of the phaynx is covered by the _________. duodenum trachea larynx epiglottis save and exit

In the united states congress about 50 percent of the offices are held by women. a. True b. False

How did roman plebeians make a living? As soldiers and generals As farmers and traders As senators and priest As slaves and servants?

While the Puritans and Quakers are Christian groups from Europe, A) the Olmec beliefs trace their roots to Africa. B) the traditional African and Olmec beliefs

What happened to most of wilson's points in the final draft of the treaty of versailles? why?