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

What number of atoms does K2CO3 have?
Can you compare any two unit rates ?
Which of the following fractions has the greatest value? A) 3/8 B) 2/3 C) 7/10 D) 1/2
Pada pendapat anda, bagaimanakah tahap kesedaran masyarakat terhadap penyakit jantung dapat ditingkatkan
In the English language each letter of the alphabet has only One sound true or false?
The sum of the three numbers 180. If the first number is (2x-11) and the second is (x-4) which represents the third number? a) 165-3x b) 187-x c) 195-x d)195-3x
The sum of a number divided by 5 and 7 is 2
What does this map illustrate, and what effect did it have on the region?
This is the fundamental force which holds particles together to form protons and neutrons
According to the supreme court case, us v. scheneck, when are our first amendment rights limited?