Seudónimo Seudónimo

02-12-2016
Mathematics

contestada

solve system by elimination
9x-3y=3
3x+8y=-17

Respuesta :

apologiabiology apologiabiology

02-12-2016

multiply 2nd equation by -3 and add to first

9x-3y=3
-9x-24y=51+
0x-27y=54

-27y=54
divide both sides by -27
y=-2

sub back
3x+8y=-17
3x+8(-2)=-17
3x-16=-17
add 16 to both sides
3x=-1
divide 3
x=-1/3

(x,y)
(-1/3,-2)

Answer Link

Otras preguntas

After the fall of the Soviet Union, Cuba lost its subsidies but remained a __________ nation.

Today, air travel allows large numbers of people to move quickly over long distances. Which of the following is a likely effect of air travel technology? A.

What is the value of x?

Apply the distributive property to simplify the expression. -7(4x-3)

A 25.0-kg child plays on a swing having support ropes that are 2.20 m long. Her brother pulls her back until the ropes are 42.0° from the vertical and releases

Olhe a imagem e responda

What does the tomb look like in Romeo and Juliet

read the following passage from the love story of j Alfred prufrock for I have known them all already known them all have known the evening's mornings afternoon

world war 2 Based on the information in the excerpt,. How did the United States react to the events of the Holocaust? a. brought Nazi leaders to military trib

A person sitting in the top row of the bleachers at a sporting event drops a pair of sunglasses from height of 24 feet. the function h= -16X squared + 24 repres