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

what is full form of SMPS????

answer pls now 20 points

A _____ learning orientation is the desire to learn and improve your knowledge, soft skills, and other characteristics in pursuit of personal development.

A truck that can carry no more than 5900 lb is being used to transport refrigerators and upright pianos. Each refrigerator weighs 250 lb and each piano weighs 5

please help ill give brainiest

QUESTION AND ANSWER CHOICES BELOW:

The triangular prism shown below is 6cm, wide and 4cm deep. The vertical height is 7cm. What is the length of the side edge, s, of the triangular prism? Round y

Which of the following is a BEHAVIORAL adaptation? Sleeping during the day O Large ears Camouflage O Seed production

Please help me with both please

m ll n and m∠1 = 45°. What is the m∠2?