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 ( 63+ )
Otras preguntas
what is 23% of 28. it has to be 20 characters long
A TV that usually sells for $187.13 is on sale for 25% off. If sales tax on the TV is 9%, what is the price of the TV, including tax? (Please explain why as wel
How do you explain the large domestic trade in slaves betwween 1800 and 1860?
what if we have no democracy and the declaration of independence wouldn't have happened. You need to look at this as a cause and effect chart. like if the colo
Some technologies like vertical farming have a number of negative effects. Which is a negative result of this technology?
Answer and show work #37
standard cars have 4wheels and standard semitrucks have 18 wheels. if only cars and semitrucks are parked in certain lot, the totals number of wheels can be exp
Each car on a commuter train can seat 114 passengers. If the train has 7 cars, how many passengers can the train seat
what is cell therapy
When an atom absorbs energy the electrons move from their?
