419037 419037
  • 02-04-2021
  • Mathematics
contestada

how to solve x=7y+3 and 9y-x=1 using subsituation method and showing work.

Respuesta :

s28045292
s28045292 s28045292
  • 02-04-2021

Answer:

x = 25/2

y = 3/2

Step-by-step explanation:

x = 7y + 3

9y - x = 1

9y- (7y + 3) = 0

2y - 3 = 0

2y = 3

y = 3/2

9(3/2) - x = 1

27/2 - x = 1

-x = -25/2

x = 25/2

Answer Link
Yang100
Yang100 Yang100
  • 02-04-2021

Answer:

x=17, y=2. (17, 2).

Step-by-step explanation:

x=7y+3

9y-x=1

----------

9y-(7y+3)=1

9y-7y-3=1

2y-3=1

2y=1+3

2y=4

y=4/2

y=2

x=7(2)+3

x=14+3

x=17

Answer Link

Otras preguntas

Does this table represent a function?
The oath taken by physicians is popularly known as _____.
Which is bigger 5.4 or 5.400
How are macromolecules formed from the essential of living systems
what are three kinds of perspective that geographers use to look at the world
a store is giving away $10 coupons to every 7th person to enter the store and a $25 coupon to every 18th person too emter the store whick person will be the f
if you are 29 years old, you have been alive for about 920,000,000 seconds. write this number in scientific notation.
Plows and draft animals are to the agrarian society as ________ are to the industrial society.
If a bullet travels at 551.0 m/s, what is its speed in miles per hour?
Neurons are cells in the nervous system that process and transmit information . And average neuron is about 5 • 10^negative 6 meter in diameter . A standard tab