ciaomama0406 ciaomama0406
  • 13-02-2017
  • Mathematics
contestada

Equation P: y + z = 4
Equation Q: 3y + 7z = 15

What steps can be used to eliminate the y term?

Respuesta :

SyntaxError
SyntaxError SyntaxError
  • 13-02-2017
[tex]y+z=4\\ 3y+7z=15\\ -3y-3z=-12\\ 3y+7z=-12\\ 4z=-24\\ z=-6[/tex]

Multiply the top equation by -3 and added to the second one.

By Elimination.

Answer Link

Otras preguntas

What does y-intercept represent?
find the area of a circle with a diameter of 22 inches?
Taylor wants to make 2 1/2 times the quantity given in a recipe. The recipe calls for 1 3/4 cups of flour. How much flour will Taylor need?
Verify the identity sec(beta) - 1 / cos(beta) = sec(beta)
It takes Akira 10 minutes to make a black and white drawing and 25 minutes for a color drawing.  On Saturday he made a total of 9 drawings in 2 hours.  Write an
9/10 divided by (1/10 plus 2/5)
graph x+2 is greater than -2
Geoffrey ate  2/3 of a mini pizza. Claire ate 1 3/4  times as much pizza as Geoffrey.  How many mini pizzas did Claire eat? Express your answer in simplest form
graph x+2 is greater than -2
is it true or false that after the american revolution conflicts in the northwest territory erupted between remaining british soldiers and native americans