kyliemo2003
kyliemo2003 kyliemo2003
  • 01-02-2017
  • Mathematics
contestada

Solve the system of equations.

3x+5y=9
3x+2y=3

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 01-02-2017
eliminate
multiply 2nd equtaon by -1 and add to first

3x+5y=9
-3x-2y=-3 +
0x+3y=6

3y=6
divide by 3
y=2

sub back

3x+2y=3
3x+2(2)=3
3x+4=3
minus 4 both sides
3x=-1
divide by 3
x=-1/3

(x,y)
(-1/3,2)
Answer Link

Otras preguntas

fdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd
What conclusion can you draw about the relationship between a percentage of the population in each estate and the percentage of land owned by that estate
why does grass roofs help the environment?
tricky and more with math and more
Police: 911, what’s your emergency Me: omae wa mou shindeiru ✨nani?!?✨ Police: *ded*
Which of the following is not true of Great Britain
find the surface area of the rectangular prism please show work!
Eric and Carly each made a bowl of punch. Carly used 5 times as much lemonade as Eric did. If Eric used 1/4 of a cup of lemonade, how many cups of lemonade did
What does geological time have to do with rocks?
What is the value of x? 155 105 A. 55° B. 160° C. 50° O D. 20°