Nodia
Nodia
02-02-2015
Mathematics
contestada
2x -y=-1
3x-2y=1
elimination somebody do this for me
Respuesta :
Pandagirl
Pandagirl
02-02-2015
-2(2x-y)=-1
3x-2y=1
-4x+2y=2
3x-2y=1
-x=3 (x=-3)
(-3,__)
2(-3)-y=-1
-6-y=-1
-y=-1+6
-y=5
y=-5
so..(-3,-5)
Answer Link
logo88
logo88
02-02-2015
2x-y=-1 (1)
3x-2y=1 (2)
(1) * 2--> 4x-2y=-2 (3)
(3) - (2)
x= -3
sub x= -3 into (1)
2(-3)-y=-1
-6-y=-1
-y=5
y= -5
Answer Link
VER TODAS LAS RESPUESTAS ( 87+ )
Otras preguntas
A cow produces about 11 kiloliters of milk in a year. if 40 hectoliters of that milk go into making ice cream, how much milk is left to be used in other ways?
After the Hellenistic civilization came to an end, A(its achievements were wiped away by Roman advancements. B(it affected European arts and culture for thousan
Evan’s family drove to a theme park for vacation. Assume they drove the same speed throughout the trip. The first day, they drove 300 miles in 6 hours. The se
Solve using the quadratic formula. 3x^2+2x+1=0
Jordan is struggling with an addiction to painkillers. Which of these is a positive alternative to drug use that could help Jordan beat his addiction? A. Wat
solve the equation -4x+12=-4 for x .
Help please! How many significant figures are in the measurement 0.00440 grams? 6 5 3 2
N x 7 = 49 what is the missing added?
Hailey’s new puppy, sparky, weighed 4 pounds at six weeks old. if the puppy gains 2.5 pounds each month, after how many more months will sparky weigh 14 pounds?
Leader of the Khmer Rouge Founded in 1968 in Cambodia Who is described here?
