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
VER TODAS LAS RESPUESTAS ( 47+ )
Otras preguntas
what is a things to built smk sri kurau
Micah has 294 songs stored on his phone,which is 70% of the songs that Jorge has on his phone.How many songs are stored on Jorge's phone
Which of the following practices that are needed to run a nuclear power plant has a negative impact on both air and water? a. cooling of the power plant b. mini
Find the measure of an angle between 0 degrees and 360 degrees coterminal with an angle of -110 in standard position.
What are accepted without proof in a logical system?
Word Problem Alexis has a steady babysitting job over the summer. She starts out with $50 by the end of the first week and earns $30 each week. She thinks it wi
How do you solve for sin (5pi/3) without a calculator? Show your solution.
How many great emperors were there during the Mughal Empire?
what is acceleration?
What is the oxidation number of Cl in chlorate ion ClO3?
