sarahlamar382
sarahlamar382
03-12-2014
Mathematics
contestada
3x+4y=2 4x-4y=12 elimination
Respuesta :
Wenqian
Wenqian
03-12-2014
3x+4y=2
+ 4x-4y=12 add them since 4y and -4y can cancel out
7x=14 divide each side by 7
x=2
3x+4y=2 x=2
3(2)+4y=2 substitute
6+4y=2
-6 -6
4y=-4 divide each side by 4
y=-1
Answer Link
ritz
ritz
03-12-2014
3x+4y=2
4x-4y=12
Add both
7x=14
X=2
Substitute value of x in first equation
Y=-1
Answer Link
VER TODAS LAS RESPUESTAS ( 76+ )
Otras preguntas
The remains of what appear to be the oldest stone temples have been discovered in ____.
What estate eventually lead an uprising to start the first french revolution?
What is the measurement of JKM
The blue line in the yellow line trains just arrive at the station when will the next arrive at the stake not same time
Why did people risk their lives to fight against the world’s superpower in the 1770s?
Royal officials who were directly responsible to the king were called
Jason is blindfolded and cannot verbally identify objects in his left hand, which suggest that he has had a dyslexic episode a lateralization of his brain hemis
The development of the shipbuilding and cod fishing industries during the colonial era would have had the biggest impact on which colony? question 5 options: no
What are the advantages and disadvantages of legalising baby bins?
The simplified expression e2t + 2 + e−2t inside the radical can be re-written as
