erinbell2005 erinbell2005
  • 02-12-2020
  • Mathematics
contestada

Find the solution to the system
5x+4y=-34 and y=3x

Respuesta :

Dead3ill
Dead3ill Dead3ill
  • 02-12-2020

Answer:

x = -2 ; y = -6

Step-by-step explanation:

Let y = 3x be eqn.1

So putting eqn.1 in 5x + 4y = -34 gives ,

[tex]5x + 4y = - 34[/tex]

[tex] = > 5x + 4(3x) = - 34[/tex]

[tex] = > 5x + 12x = - 34[/tex]

[tex] = > 17x = - 34[/tex]

[tex] = > x = \frac{ - 34}{17} = - 2[/tex]

Putting the value of x in eqn.1 gives :-

[tex]y = 3x = 3 \times ( - 2) = - 6[/tex]

Answer Link

Otras preguntas

What is a communicable disease ?
Simplify (7-5i)(-3+9i)-(5+6i)^2
how might a scientist a determine  whether trait sex-linked by observing the offspring of several genetic crosses
Rico is making4 batches of mexican rice. each batch needs 2/3cup of corn. He only has a1/3-cup measure.How manytimes must Rico measure 1/3cup of corn to have en
What is a series of events that cells go through as they grow and divide
a soccer team played 160 games and won 65% of them. how many did they win?
There is an inverse relationship between x and y. If y is when x is 3, what is x when y is 9? 3 5
What is the main religion of Latin america
what is the simplest square root of 1345? no decimals please
1.    How does the friction affect forward motion? Give an example. 2.    Describe two ways to change the frictional force between two solids surfaces. Change t