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

Which environment is a bare area of land with few trees and plants and a lot of direct sunshine? (2 points) Group of answer choices Desert Mountain Tundra Wetla
An audio cable is 14.5 dm long. How long is the cable in meters?
Simplify the expression to a polynomial in standard form. (X+1)(3x^2+9x+2)
A company makes 5 blue cars for every 3 white cars it makes. If the company makes 15 white cars in one day, how many blue cars will it make?
What is 3.44555555 rounded to 3dp
anyone who answers gets brainliest:)​
Which aesthetic theory judges art on how well it expresses feelings, moods, and ideas? A. Imitationalism B. Formalism C. Emotionalism
please help me and thank you Why do you people want to learn about the environment and the issues of it in, civic responsibility? (Few sentence please)
Please Help!!!!! I'll give Brainiest if u can help me!!! ASAP
Which of the following strategies should be utilized during the revision? A) Cross things out. B) Move words or lines around. C) both a and b