NyMoon
NyMoon
03-06-2015
Mathematics
contestada
−4x + y = 6
−5x − y = 21
Respuesta :
apologiabiology
apologiabiology
03-06-2015
assuming x=x and y=y in both equations
add them together
-4x+y=6
-5x-y=21 +
-9x+0y=27
-9x=27
divide by 9
-x=3
multiply -1
x=-3
subsiutte
-4x+y=6
-4(-3)+y=6
12+y=6
subtract 12
y=-6
x=-3
y=-6
the soultion set is in (x,y) form
(-3,-6)
Answer Link
VER TODAS LAS RESPUESTAS ( 52+ )
Otras preguntas
can someone help me out? :P
Un censo determina que el 12% de los residentes de cierta ciudad son de 60 años de edad o mayores, mientras que el 16% son de 3 23 años de edad o menores. ¿Cuá
Which of the following factors can limit photosynthesis by being either too high or too low?a.Lightc.Oxygenb.Carbon dioxided.TemperaturePlease select the best a
A. B. C. or D? ....
The statement "all objects in the universe attract each other," is an example of which of the following
Ms. Wilson traveled to Italy this summer and went swimming in the Mediterranean Sea. Her skin felt very dry after a long day of swimming. Using your knowledge o
Mr.Sappleton Can best be described as
Which of the following elements forms an ion with a 1- charge? fluorine hydrogen potassium sodium
Match the table to show whether each function is even, odd, or neither. f(x) = x^3- 4x + 3 f(x) = 2x^4-x^3+9
Pan-Africanism began as a movement against European colonial powers on the African continent is true or false
