francobazz
francobazz
15-03-2015
Mathematics
contestada
4x +2y = 12
-4x + 5y= -5
Respuesta :
naǫ
naǫ
15-03-2015
[tex]4x+2y=12 \\ \underline{-4x+5y=-5} \\ 2y+5y=12-5 \\ 7y=7 \\ y=\frac{7}{7} \\ y=1 \\ \\ 4x+2y=12 \\ 4x+2 \times 1=12 \\ 4x+2=12 \\ 4x=12-2 \\ 4x=10 \\ x=\frac{10}{4} \\ x=\frac{5}{2} \\ x=2 \frac{1}{2} \\ \\ \boxed{(x,y)=(2 \frac{1}{2}, 1)}[/tex]
Answer Link
Аноним
Аноним
15-03-2015
Please, look at photo :))
-Good luck !
Answer Link
VER TODAS LAS RESPUESTAS ( 34+ )
Otras preguntas
How do I solve this ?
Help on 10,14 and 15 plzz
how do i find the area
from a tale in the Decameron is selfish because he puts his own desires before the needs of his family.
the study of matter and chemical reactions in the body is known as
In ΔABC, ∠A = 120° and ∠B = 40°. What is the measure of ∠ C? Which side is the longest?
If a carbon atom is bonded to two hydrogen atoms and two carbon atoms, what type of bond must exist between the carbon atoms? a)single b)double c)triple d)qu
Which of the following statements Is True Of An Autobiography
As Rome expanded, the conquered territories sent payments that honored the acceptance of the new rulers. What were those payments called?
Briefly explain, in your own words, the sides that are found in a kite.
