isabel4845 isabel4845
  • 04-06-2021
  • Mathematics
contestada

Find the solution of the system of equation -x-8y=2 and x-5y=-15

Respuesta :

ahmadnahianhamim007
ahmadnahianhamim007 ahmadnahianhamim007
  • 04-06-2021

Here you will find the answer.

Link:https://www.symbolab.com/solver/step-by-step/-x-8y%3D2%20and%20x-5y%3D-15

Answer Link
Leora03
Leora03 Leora03
  • 04-06-2021

Answer:

x= -10, y= 1

Step-by-step explanation:

-x -8y= 2 -----(1)

x -5y= -15 -----(2)

From (2):

x= 5y -15 -----(3)

Substitute (3) into (1):

-(5y -15) -8y= 2

Expand:

-5y +15 -8y= 2

-13y +15= 2

13y= 15 -2

13y= 13

Divide both sides by 13:

y= 13 ÷13

y= 1

Substitute y= 1 into (3):

x= 5(1) -15

x= 5 -15

x= -10

Answer Link

Otras preguntas

who discovered the gulf stream
Which one of the following phrases contains vivid words that create imagery? A. Cotton-like clouds B. Sang a solo C. Traveled far D. Twenty soldiers
A direct result of landlords not maintaining their tenements during the early 1900's was that
factor each expression 11x+55
what makes jurassic time period unique
When Australia became the federated Commonwealth of Australia in 1901, Sydney and Melbourne competed to be the capital city. A compromise was reached and ______
Plants have male and female gametes (sperm and ovaries) and can reproduce sexually.
In 1607, the 1 established their first permanent colony in the Americas at A. Quebec, Canada. B. Jamestown, Virginia. C. Plymouth, Massachusetts. D. Philade
What role do you think mobile devices have played in shaping the world?
The expression 3r - 6 can be written as _____.