Seudónimo Seudónimo
  • 01-12-2020
  • Mathematics
contestada

2x + y = -7
5x - y = 0 show work plz!

Respuesta :

sevillaalek sevillaalek
  • 01-12-2020
First solve for one variable
(I chose bottom equation because it’s easier)
Get y alone: Y = 5x
Now that we have y we can plug y into the top equation
Plug in 5x for y: 2x + 5x = 7
Solve for x: 7x = 7
X = 1

Now plug in the x value into the bottom equation to solve for y
Y = 5(1)
Y= 5


So, x = 1 and y = 5

Answer Link

Otras preguntas

Can someone use the word delta in a sentence
Marika and Freddy sold 70 homes for Ron Realty. If Marika sold 2.5 times as many homes as Freddy, how many homes did each sell?
Scarcity is the condition of not having enough goods and services to satisfy everyone's?
Historians of china have traditionally dated the beginning of Chinese civilization to the founding of the what??
Find Domain of the functionsquare root of (x-8)/x(x-9)
Scarcity is the condition of not having enough goods and services to satisfy everyone's?
Historians of china have traditionally dated the beginning of Chinese civilization to the founding of the what??
Prove that (x^5)-(x^2)+2x +3=0 has at least one real root. Prove that x=cosx has at least one solution.
(10y^3+20y^2+55y)/5y
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