funnypaige
funnypaige
22-05-2017
Mathematics
contestada
What's the answer on number 11
Respuesta :
mjankiewicz
mjankiewicz
22-05-2017
2x-y=7
2x+7y=31 |* (-1)
===
2x - y = 7
-2x-7y=-31
===
-y-7y=-24
-8y=-24 |:(-8)
y=3
2x-y=7
2x-3=7 |+3
2x=10 |:2
x=5
x=5
y=3
Answer Link
VER TODAS LAS RESPUESTAS ( 68+ )
Otras preguntas
Which word is an example of a demonstrative adjective?
Write a paragraph on the following How do you think writing poetry could give someone a "sense of freedom"?
People with diabetes often receive insulin injections. What effect does insulin have on the body
solving systems of equations by elimination.
why would a shortage of consumer goods arise during wartime
Edgar Degas is an artist who is associated with impressionism.By allowing the windows to be included in the scene, Degas created this art piece in such a way th
Why did the Democratic-Republicans see the whiskey tax as a pro-Federalist policy? A. The tax seemed to affect only farmers. B. Farmers felt they should only
Chemistry small question
What temperature in fahrenheit is 28 degrees below freezing?
I got 10 min, Help. Please ASAP
