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

In the book To Kill a Mockingbird, According to Atticus, why don't blacks get a fair deal in court? Why are jurors always from the countryside and not the town?

what does common and proper noun mean

What' is the fourth letter in the alphabet

Which cash crop was the largest export from the South just before the Civil War?

in quotient and remainder what is the remainder of 2,117 divided by 7

how can you determine if two ratios are equivalent

Which of the following terms are like terms? a) 9x and 9y b)12ac^2 and ac^2 c)8xy and 8xz d)ab^2 and x^2y

What economic situation did World War II create on the home front? A.) A combination of prosperity and abundance B.) A combination of poverty and abundance C.)

which religion was the monarch forced to practice under the English Bill of Rights

which answer best expresses what the articles of confederation said about taxing americans