nintimanny nintimanny
  • 27-01-2015
  • Mathematics
contestada


Question 4. 4. What is the y-coordinate of the solution to the system of equations?
x- y = - 11
y+7 = - 2x

Respuesta :

naǫ
naǫ naǫ
  • 27-01-2015
[tex]x-y=-11 \\ \underline{y+7=-2x} \\ x+7=-11-2x \\ x+2x=-11-7 \\ 3x=-18 \ \ \ |\div 3 \\ x=-6 \\ \\ x-y=-11 \\ -6-y=-11 \ \ \ |+6 \\ -y=-5 \ \ \ |\times (-1) \\ y=5 \\ \\ (x,y)=(-6,5)[/tex]
Answer Link

Otras preguntas

A group consisted of 2 girls for every boy. 24 more girls joined in the class. There are now 5 girls for every boy. How many are in the class?
name and location of state capitol of Ohio
4+2(5*7) please help me do this, km in year 10!
A group consisted of 2 girls for every boy. 24 more girls joined in the class. There are now 5 girls for every boy. How many are in the class?
wat are the names of flying mamoths
Simplify (-2xy2)4(2x3y4)2
Simplify (-2xy2)4(2x3y4)2
Mary's father has five daughters Nana, Nene, Nini, Nono, What is the name of the fifth daughter?
abbie spent 5/8 of her money and saved the rest. if she spent 45,how much money did she have at first?
What are the three structural components of a nucleotide? A. A carboxyl, a sugar, and a phosphate B. A phosphate, an amino acid, and a carboxyl C. An amino acid