Ash0405
Ash0405
02-02-2015
Mathematics
contestada
Solve by substitution
X+3y=1 and -3x-3y=-15
Respuesta :
Аноним
Аноним
02-02-2015
[tex]x+3y=1\\ -3x-3y=-15\\ add\quad the\quad equ.\\ (x+3y)+(-3x-3y)=1-15\\ x-3x+3y-3y=-14\\ -2x=-14\\ x=\frac { -14 }{ -2 } \\ x=7\\ Let's\quad rewrite\quad the\quad equ.\\ 7+3y=1\\ 3y=1-7\\ 3y=-6\\ y=\frac { -6 }{ 3 } \\ y=-2[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 87+ )
Otras preguntas
Students at Hampton Middle School sold T-shirts as a school fundraiser. Sylvie asked 12 random seventh-grade students how many T-shirts they sold for the fundra
// GetData() method accepts order number and quantity // that are used in the Main() method // Price is $3.99 each using System; using static System.Console; cl
Cuando dos equipos de fútbol juegan un partido y meten el mismo número de goles, (A) pierden el campeonato (B) llevan el uniforme (C) están empatados (D) ganan
The theory of urban development that emphasizes wedge shapes extending from the center to the periphery is called the Select one: a. concentric circle model. b.
according to the statistics, drugs kill peole every day which is the subject verb and direct object
Rectangles F and H are similar. If rectangle F has dimensions of 5x10 and rectangle H has dimensions of 15 by an unknown amount. What is the unknown dimension?
One way Chip's Coffee House retains staff is by offering two-weeks paid vacation and health insurance benefits for part-time employees. Which of Bossidy and Cha
You start driving north for 7 miles, turn right, and drive east for another 24 miles. At the end of driving, what is your straight line distance from your start
personajes del cuento mi novia evelyn
Two double bonds means that the total number of electrons being shared in the molecule is. A. two B. four C. six D. eight (PLEASE HURRY AND ANSWER THIS QUESTI
