p3ok2hvdellyRodgy p3ok2hvdellyRodgy

18-09-2016
Mathematics

contestada

what is the value of y in the solution to the following system of equations? 2x y = −4 5x 3y = −6

Respuesta :

nobillionaireNobley nobillionaireNobley

18-09-2016

2x + y = -4 . . . (1)
5x + 3y = -6 . . (2)

From (1), y = 4 - 2x . . . (3)
Putting (3) into (2), gives
5x + 3(4 - 2x) = -6
5x + 12 - 6x = -6
-x = -6 - 12 = -18
x = 18

From (3), y = 4 - 2(18) = 4 - 36 = -32

Answer Link

Otras preguntas

What I need to know about Hungary?

For thousands of years, one precious gemstone has been a favorite of church leaders and royalty. The ancient Greeks, Egyptians, and the Bible all made reference

2(x-4) = 5 (x+24) rewrite the equation in slope-intercept form

Explain how to simplify expressions like 6(x4) (I’ve really been struggling on this so please explain .-.) I think this is 50 points so-

Speaker A: “The use of the bomb shortened the war and saved American lives." Speaker B: "The United States might have been able to force the Japanese to surrend

What emotion or feeling did the photographer create with this photo? How does the photograph do this?

What are the factor pairs of 81.

Unrelated question: Who's still mad at Morgan Wallen? (I was never mad at him, I think he's great)

find the equation of the line y= _x+_

Help with the problem