filou222 filou222
  • 23-11-2014
  • Mathematics
contestada

Substitution methode:
5x-3y=-11
x-2y=2

Respuesta :

Lilith
Lilith Lilith
  • 24-11-2014
[tex]\begin{cases} 5x-3y=-11 \\ x-2y=2 \end{cases}\\\\\begin{cases} 5x-3y=-11 \\ x =2y+2 \end{cases}\\\\Substitution \\5(2y+2) -3y=-11 \\10y+10-3y=-11[/tex]

[tex]7y=-11-10\\7y=-21\ \ / :7\\y=-3\\\\x =2*(-3)+2=-6+2=-4\\\\Answer: \ \ \begin{cases}x=-4 \\y=-3 \end{cases}[/tex]


Answer Link

Otras preguntas

Name a substance that moves by each mechanism
Some office workers bought a $60 gift for their boss. If there have been 5 more employees to contribute, everyone's cost would have been $2 less. How many worke
whats the answer for 7x-3x^2=85+2x^2=2x and how do you solve it
how did African Americans challenge segregation after world war 2?
whats the answer for 7x-3x^2=85+2x^2=2x and how do you solve it
Bob bought 24 hockey tickets for $83. Adult tickets cost $5.50 and child tickets cost $2.00. How many of each did he buy?
What is not a characteristic of ethnicity? language race religion politics
Distinguish between the terms "insoluble" and "unsaturated." Give an example to illustrate each term.
Simplify the expression as much as possible. sin(2x)cos(x)
Can someone tell me what is monet?