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 two large alliances took shape before the beginning of world war 1
The last of Wilson's Fourteen Points called for
fun facts about Uranus the planet?
which number will make the fractions equivalent 25/35
When the following is balanced, C₄H₁₀ + O₂ → CO₂ + H₂O, what is the coefficient of CO₂? a. 2 b. 4 c. 8 d. 10 e. 13
A molecule of nitrogen gas consists of two nitrogen atoms joined together. Write the formula of nitrogen gas.
Who were the 'KKK' and what were there intentions? (Teacher didn't tell me)
Explain why shorelines are always changing
What is significant about Gatsby keeping watch over Daisy at the end of the chapter? In the Great Gatsby
Explain why shorelines are always changing