JoeWeidner
JoeWeidner
10-02-2017
Mathematics
contestada
How do you solve for x and y?
Respuesta :
wolf1728
wolf1728
10-02-2017
A) 3x -2y = -8
B) x +5y = 20
Multiply B times -3
B) -3x -15y = -60 Then adding this to A)
A) 3x - 2y = -8
-17y = -68
y = 4
B) x +5y = 20
x + 20 = 20
x = 0
Answer Link
VER TODAS LAS RESPUESTAS ( 13+ )
Otras preguntas
evaluate the function f(x)=4x7^x for x=^-1 and x=2
-4 greater than or equal to 5 + 3x greater than or equal to 11
How do the 3 witches make Hecate angry ?
Skew lines a and b represent Donna's and Charlie's paths as they simultaneously walk on the first and second level of a shopping mall. Choose the best explanati
A pipe is leaking at 1.5 cups per day. About how many gallons per week is the pipe leaking?
Someone help me with this question please
colin sold student tickets and guest tickets to a school play.He sold a total of 154 tickets in all. He sold 8 more student tickets than guest tickets.How many
Acid rain is produced when _______ mixes with the water of a raindrop. A. Carbon Dioxide B. Nitrogen Dioxide C. Sulfur Trioxide D. All of the Above E. None of t
What is the difference between continents, regions, countries, and cities in order to understand the complexities of regions created by civilizations.
which equation is a related equation? x + 15 =24 A.x = 24 - 15 B.x = 15 - 24 C.15 - x = 24 D.x - 15 = 24
