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 ( 69+ )
Otras preguntas
3 classmates share 2 granola bars equally. How much does each classmate get?
order least to greatest 100% 1/100 0.001% 1/10 0.001 1.1 10 10,000/100
3x+2y=4 4x+5y=17 What is the value of x and y?
Describe what happens to the graph of y=3x+4 when the slope is changed to 1/3
Which ratio is the odd one out? 5:30 2:12 7:41 1:6 10:60
who was the 20th president plz dont search it
Who is Alexander the great?
What country today contains the land that was called Persia
According to astronomers, what is a "light year"
An analysis of an oxide of nitrogen with a molecular weight of 92.02 amu gave 69.57% oxygen and 30.43% nitrogen. What are the empirical and molecular formulas f