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

how many grams of hydrogen peroxide (H2O2) must be added to 1,500 ml of water to produce a concentration of 1.33m (molai solution)
Form a polynomial with real coefficients having the given degree and zeroes
The side length of a cube is √7 cm. What is the volume of the cube? (Volume = length times width times height)
please help     Fill in the missing reasons in the proof
What is the largest of three consecutive positive integers if the sum of the smaller two integers is 11
when the u.s census is completed each state is notified how it population affects its number of congressional districts this process is called
If you weigh 690n on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 19.0 km ?]
Life in Sudanese refugee camp
Express the polynomial 2m^2-3+7m in standard form
How would you graph this linear equation x-5=0