tahararafique230
tahararafique230 tahararafique230
  • 02-09-2020
  • Mathematics
contestada

How many solutions does the system have?

2x+3y=6
-3x+5y=-15

Respuesta :

dannielle
dannielle dannielle
  • 02-09-2020

Answer:

one solution

Step-by-step explanation:

2x+3y=6      multiply this equation  with 3

-3x+5y=-15    multiply this equation  with 2

so

6x+9y=18

-6x+10y=-15

----------------------

add these equation

so 6x-6x+9y+10y=18-15

     19y=3

y=3/19

so 2x+3*3/19=6      multiply this equation  with 19

2x*19+9=6*19

38x+9=114

-9          -9

38x=105

x=105/38

   

Answer Link

Otras preguntas

Describe the vietcong battle tactics and ways that american troops tried to counter these tactics
What is the key to maintaining a healthy weight apex?
What is upward and downward social mobility of children to their parents called?
What did booker t. washington and w. e. b. dubois agree on?
−2∣5w−7∣+9=−7 What is the 2 answers for this question
Help please! I’ll give brainliest..
If you buy 3 apples worth 0,65$ each with a 10$ note, how much change are you left with ?
1+1=?..............................................................
List and describe the three elements of media literacy
Dividing a Line Segment Based on a RatiON