22-10-2016
Mathematics

contestada

6y+5x=8 x3y=-7 use substituion

Respuesta :

22-10-2016

Substitution:

6y + 5x = 8
x + 3y = -7

x = -3y + 7

6y + 5(-3y + 7) = 8
6y - 15y + 35 = 8
-9y + 35 = 8
-9y = -27
-y = -3
y = 3

x = -7 + 9
x = 2

y = 3
x = 2

Answer Link

Otras preguntas

Earth houses are predominantly illuminated with natural light. TRUE or FALSE.

Drugs and alcohol are positive tools for coping with loss. Please select the best answer from the choices provided. a. True b. False

_______ refers to large family-owned companies that develop into giant conglomerations, such as Samsung, LG, and Hyundai, in South Korea. A. Kaizen B. C

Which one of the following foods is an example of a carbohydrate that should be restricted if you re trying to lose weight? a. Beans b. Whole-grain pasta c.

Sunita bought a 10Kg. box of grapes from the market. She gave 3 1/2Kg. of the grapes to her friend Punita and 2 1/4Kg. to Anita. How many Kg. of grapes were

Athletes can end up anemic, injured, and chronically sick with colds or the flu if they neglect their _______ needs. a. protein b. potassium c. calcium d. c

Which of the following is a true statement about the sexual assault RESTRICTED reporting option? a. Restricted reporting option is the only means for receiving

All of the following were factors that led to the first labor strikes in the United States EXCEPT: a. a lack of child labor laws b. poor wages c. job securit

Find the difference. 6rs - (-2rs) 4 3rs 4rs 8rs

Which term describes the second personality seen in a person with dissociative identity disorder (DID)? A.ego B.superego C.alter ego D.id