barnhart115 barnhart115
  • 04-06-2019
  • Mathematics
contestada

What is the solution to the system of equations? Use the linear combination method.
{2x−3y=9
{3x+5y=4

Respuesta :

nagichan
nagichan nagichan
  • 04-06-2019
1. {2x−3y=9
{3x+5y=4

2. {(2x−3y=9)×5
{(3x+5y=4)x3

3. {10x-15y=45
{9x+15y=12

4. (10x-15y=45) + (9x+15y=12)= (19x=57)

5. (19x=57)÷19

6. x=3

7. 2(3)-3y=9

8. 6-3y=9

9. -3y=9-6

10. (-3y=3)÷(-3)

11. y=-1

Answer: x=3 and y=-1
Answer Link

Otras preguntas

F(x)=x^2 what is g(x)
Read the poem “Fog,” by Carl Sandburg. The fog comes on little cat feet. It sits looking over harbor and city on silent haunches and then moves on. Which of the
What is the y-intercept of the line whose equation is 3y=6x+12? A) 1 B) 2 C) 3 D) 4
Which body part represents the notochord in vertebrates?
As a general rule, really great novels contain A. multiple settings. B. universal truths. C. one main conflict. D. complex plots.
Guys help plzzz frnds
Aubrey is typing a 10-page research paper for her business law class on the branches of the us government. she opened the file on the legislative branch heading
please helppppppppppppppppppppppppppp Please name one major city on the map. Which MAJOR body of water borders the nation of Israel?
How did the author develop the idea that life was difficult for the new immigrants coming to live in American Dream
Explain three different textual features that communicates or create meaning in informational texts.