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
During the civil war, Harriet Tubman was
This dot plot shows the number of runs scored by the YellowJackets in their last 12 baseball games.How could you describe the graph?Skewed right; the tail to th
What was Anne’s most important birthday present
Solve the following: a) 4x-1 / 2= x+7 b) 3x + 2 = 2x + 13 /3
Sharon earned 6000 bonus miles for opening a new credit card that has a frequent-flyer program. She earns 250 miles for every $100 she spends. When the total mi
not really need a answer just look for people to see this and and to it I'm living in that 21st century doing something mean to it
Qué es identidad natural
Please answer this correctly
How is ploughing, sowing and weeding diffrent from crops grown in mud pots than the crops grown in the fields
c) Keeping all other criteria the same, add a child to the family you used in part a to determine the monthly expenses. How does an additional child impact the
