davidh90901
davidh90901 davidh90901
  • 15-10-2018
  • Mathematics
contestada

X-7y=53 -4x-5y=19 solve for x and y

Relax

Respuesta :

yellowyarn2003 yellowyarn2003
  • 19-10-2018

Answer:

y = -7; x = 4

Step-by-step explanation:

x - 7y = 53

x = 7y + 53

-4x - 5y = 19

-4(7y + 53) - 5y = 19

-28y - 212 - 5y = 19

-33y = 231

-11y = 77

y = -7

x - 7(-7) = 53

x + 49 = 53

x = 4

Answer Link

Otras preguntas

Which statement refers to per capita GDP?   A. The American economy increased its productivity over last year. B. The average household level of production dec
Ned Land is generally distrustful of science and progress. True False
Two ways in which south Americas geography has shaped the way its people live
Prove ∆BAC is congruent to ∆CDB
The OSH Act gives you only __________ days to report discrimination. a. 10 b. 15 c. 30 d. 5
According to the 14th Amendment, United States citizens are also citizens "of the state wherein they __________."
What is the difference between effectiveness and efficiency?
what is the correct classification of the square root of 32
a cricketer moves his hands backwards when holding a catch
How did European countries react to the Hawley-Smoot Tariff