melissalau1 melissalau1
  • 03-04-2017
  • Mathematics
contestada

5x-y=6
9x+4y=5
what is the answer to this algebra problem?

Respuesta :

wormynut
wormynut wormynut
  • 03-04-2017
Subtract both the equations by putting the variables at the same spot and multiplying one of the equations both so that you ave at least 1 similar constant
9x-y=6 (Multiply with 4)
5x-4y=5 

36x-4y=24
5x-4y  =5 (Change signs so that one of the variables get cancelled as they 
                  have same constant now)

36x-4y=24
-5x+4y=-5
---------------
31x=19

x=19/31 

Substitute x in equation to get y
Answer Link

Otras preguntas

What is the Y-intercept of x-2y=10? Can someone please explain how they get the answer.
8: find the greatest number if 5 digit which when divided by 25,30and 40 leaves a remainder of 20, 25 and 35 respectively.
what additional information would you need to prove the triangles congruent by ASA
Solve for X Explain if possible :)
The distance between a 10 cm tall candle and the reflecting surface of a concave mirror is 40 cm. the radius of curvature of the mirror is 25 cm. now, a. what i
How does land use in the United States contrast with the land use laws inherited from England?
Which excerpt from Henry David Thoreau's Walden illustrates his high regard for nature? A. “In the midst of this chopping sea of civilized life, such are the
What type of exercise contributes most to building strong bones?
Write logical sentences that make comparisons using the words in parentheses. En general / hay / águilas / buitres (menos... que)
I need help on this question plz