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

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

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

List 3 commercial uses of sponges.
List 3 commercial uses of sponges.
How does 4/15=14/n? What does n equal?
What kind of particles make up compound
What is the quotient of -1 4/5 and 2 1/4?
Search results for "A shipment of 18 cars, some weighing 3,000 pounds, and the others weighing 5,000 pounds each. Together the shipment has a total weight of 30
Why does land heat up more faster than water?
What kind of particles make up compound
Search results for "A shipment of 18 cars, some weighing 3,000 pounds, and the others weighing 5,000 pounds each. Together the shipment has a total weight of 30
How does 4/15=14/n? What does n equal?