Seudónimo
Seudónimo
01-06-2015
Mathematics
contestada
-3x-3y=3
5x+y=-17
What is the answer ?
Respuesta :
Panoyin
Panoyin
01-06-2015
-3x - 3y = 3 ⇒ -3x - 3y = 3
5x + 1y = -17 ⇒
-15x - 3y = 51
12x
=
-48
12 12
x = -4
5x + y = -17
5(-4) + y = -17
-20 + y = -17
+ 20 + 20
y = 3
(x, y) = (-4, 3)
Answer Link
VER TODAS LAS RESPUESTAS ( 88+ )
Otras preguntas
Compliant is to stubborn as excited is to
Simplify. (-1/2)(4times)(-2)(7y)(-1) A. –28xy B. –28 C. 28xy D. 27
Mrs.Henderson had 7/12dozen eggs in her refrigerator.Then she used 1/6 dozen eggs to make a cake.What fraction of a dozen is left?
Which is the best description of civil liberties? A. natural rights B. privileges C. rights guaranteed by law D. democratic goals E. trial procedures
who fought against each other in the crusades?
A recipe call for 2 cups of water for every 5 cups of flour. How many cups of water are needed for 1 cup of flour? A. 2 1/2 cups B. 2 cups C. 1/2 cup D. 2/5 cup
What is the additive inverse of -4a
How well did feudalism establish order in the Middle ages?
On a map, the distance between two cities is 7.3 centimeters. The map scale is 1 cm:50 km. What is the actual distance between the two cities?
explain, in terms of atomic structure, why group 18 elements on the periodic table rarely form compounds
