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 ( 13+ )
Otras preguntas
Assume that the risk-free rate is 8 percent, the required rate of return on the market (or an average-risk stock) is 13 percent, and the required rate of return
Converges and Diverges part 3:
In which of the following ways are bacteria similar to birds
The systems perspective in adaptive leadership involves looking at problems that a. Are complicated, complex, and dynamic that can evolve and change b. Requir
Cuando se ________ comida chatarra, se _____ de peso. A. como, aumento B. comen, aumentamos C. come, aumenta D. comemos, aumenta
Keith used the following steps to find the inverse off, but he thinks he made an error A. In step 5. Keith should have multiplied each side of the equation by 7
You have just delivered a full-term baby girl and she is doing well. You have dried her off and wrapped her in a warm blanket. You are preparing to cut the umbi
Suppose in a hospital in the United Kingdom, out of 100,986 of babies born in the last 20 years, 15 children were born with myotonic dystrophy. Myotonic dystrop
¿Quién le recomendó ese plato? (su tío)
Mobile, Inc., manufactured 700 units of Product A, a new product, during the year. Product A's variable and fixed manufacturing costs per unit were $5.00 and $2
