angelinadurfee
angelinadurfee angelinadurfee
  • 01-08-2021
  • Mathematics
contestada

9x+5y=34
8x-2y=-2
What are the values of x and y? Please explain the steps.​

Respuesta :

bjhazael
bjhazael bjhazael
  • 01-08-2021

Answer:

x = 1 and y =5

Step-by-step explanation:

[tex]8x -2y= -2\\Divide by -2\\-4x+y = 1\\add 4x\\y= 1+4x\\[/tex]

Substitute this value of y in the next equation.

[tex]9x+5(1+4x) = 34\\9x+5+20x=34\\29x+5=34\\29x=29\\x=1[/tex]

Solve for y using x.

[tex]y=4x+1\\y=4(1)+1\\y=5[/tex]

Answer Link

Otras preguntas

find an equivalent expression without parentheses -(50x-15y+15)=
How were life forms affected by the rise in atmospheric oxygen levels that began 2.2 billion years ago?
what is the answer for (20,8),(9,16) ?
How is it possible for Mercury to have frozen ice ?
Data are drawn from a symmetric and bell shaped distribution with a mean of 120 and a standard deviation of 5. There are 900 observations in the data set. What
Historians of china have traditionally dated the beginning of Chinese civilization to the founding of the what??
How were life forms affected by the rise in atmospheric oxygen levels that began 2.2 billion years ago?
Prove that (x^5)-(x^2)+2x +3=0 has at least one real root. Prove that x=cosx has at least one solution.
Find Domain of the functionsquare root of (x-8)/x(x-9)
(10y^3+20y^2+55y)/5y