valerietovar956 valerietovar956
  • 04-02-2022
  • Mathematics
contestada

Solve the system of linear equations by substitution.
3x - 2y = 11
x + 2y = 9
The solution of the system is

Respuesta :

s2000703 s2000703
  • 04-02-2022

Answer:

x=5, y=2

Step-by-step explanation:

1) Subtract 2y from both sides of x+2y to get x=9-2y

2) Substitute x into the first equation to get 3(9-2y)-2y=11

3) Solve for y (y=2)

4) Plug y into either equation: x+2(2)=9 x=5

5) The answer is (5, 2)

Answer Link

Otras preguntas

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?
Prove that (x^5)-(x^2)+2x +3=0 has at least one real root. Prove that x=cosx has at least one solution.
how is mass transit in cities a possible solution tk urban air pollution?
Historians of china have traditionally dated the beginning of Chinese civilization to the founding of the what??
Scarcity is the condition of not having enough goods and services to satisfy everyone's?
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?
Can someone use the word delta in a sentence
(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
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?