vvportillaaq vvportillaaq

04-12-2019
Mathematics

contestada

x-3y=-24
5x+8y=-5

this equation is substitution, need help :))

Respuesta :

Yang100 Yang100

05-12-2019

Answer:

x=-9, y=5. (-9, 5).

Step-by-step explanation:

x-3y=-24

5x+8y=-5

--------------

x=-24+3y

5(-24+3y)+8y=-5

-120+15y+8y=-5

-120+23y=-5

23y=-5-(-120)

23y=-5+120

23y=115

y=115/23

y=5

x-3(5)=-24

x-15=-24

x=-24+15

x=-9

Answer Link

Otras preguntas

Definition: This is a large elevated area of mostly level land. OS Term: Type term here

12 gram of magnesium carbonate is heated till no for the loss of heat the final mass was found to be 5.28 gram how much CO2 gas was given out

Early in the Renaissance, almost all bankers were people of the Jewish faith. These men provided a much-needed service to fellow businessmen who were seeking ad

Determine the value for the trigonometric expression. Give an exact answer in degrees. Hint: Consider only the principal value of an inverse trigonometric funct

vietnam's physical features and Thailand physical features (you don't have to answer both)

Ordinary shares, RM20 par value (no change during the year) RM5,000,000 Preferred 10% stock, RM40 par (no change during the year) 2,000,000 The net income was R

An expression with only one term is called a

How do you define social media?

A solution is prepared by dissolving 250 g of CH4N2O into 6.0 L of solution. What is the molarity of this solution? ________M

PLEASE HELP NEEDED IMMEDIATELY Evaluate the extent to which the Industrial Revolution influenced global reform efforts from 1877 to 1922. Draft an initial thesi

Q&A Education