haileym368 haileym368

03-06-2021
Mathematics

contestada

2x−15y=−10 −4x+5y=−30
Solve the following system for y:

2x15y10 4x5y30 Solve the following system for y class=

Respuesta :

hjksaghn2 hjksaghn2

03-06-2021

Answer:

10

Step-by-step explanation:

multiply the first equation by 2 in order to be able to cancel out the -4z and the 2x

4x-30y=-20

-4x+5y=-30

50y+5y = -20+(-30)

55y=-50

Answer Link

Otras preguntas

Historians of china have traditionally dated the beginning of Chinese civilization to the founding of the what??

Historians of china have traditionally dated the beginning of Chinese civilization to the founding of the what??

Historians of china have traditionally dated the beginning of Chinese civilization to the founding of the what??

Can someone use the word delta in a sentence

find an equivalent expression without parentheses -(50x-15y+15)=

(10y^3+20y^2+55y)/5y

Marika and Freddy sold 70 homes for Ron Realty. If Marika sold 2.5 times as many homes as Freddy, how many homes did each sell?

Data are drawn from a symmetric and bell shaped distribution with a mean of 120 and a standard deviation of 5. There are 900 observations in the data set. What

Historians of china have traditionally dated the beginning of Chinese civilization to the founding of the what??

How is it possible for Mercury to have frozen ice ?