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

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

Otras preguntas

your looking at a catalog that sells camping supplies. some of the items are drawn in scale at a ratio of 1:12, in cm. if a scale of the one of the items is 5cm

Which of the following is true of New Mexico at the beginning of the 20th century

F(x)=x^5+2x^4-13x^3-26x^2+36x+72

A rectangle pool has an area of 880 square feet. the length is 10 feet longer than the width. Find the dimensions of the pool

Why was there a baby boom during the postwar era? Question 10 options: With additional government programs in place, people were counting on assistance. People

Which was a factor that led to Bacon’s Rebellion?

Analyzing an essay one paragraph at a time helps readers

Can anyone write me a short summary of the book, Beowulf?

Which organ stores the liquid waste products of the blood? liver kidneys gall bladder bladder

Employers want workers that provide the _____.