mae9110 mae9110
  • 01-03-2021
  • Mathematics
contestada


3x+y=-9
Y=5x+7
Solve the system of linear equations by substitution

Respuesta :

hookkick6969
hookkick6969 hookkick6969
  • 02-03-2021

Answer:

x=-2

Step-by-step explanation:

Substitute y=5x+7 into the equation 3x+y=-9

So you will have, 3x+5x+7=-9

3x+5x=8x

8x+7=-9

8x+7-7=-9-7

8x=-16

x=-2

Answer Link

Otras preguntas

There are 30 students in a class, including 16 boys. Write each ratio. A. Girls to boys. B. Boys to Girls. C. Girls to all students D. Boys to all students
Can water only dissolve inorganic compounds
These two governments colonized most of the area in south america Great Britain Portugal Spain the United States
When did India and Pakistan gain independence? A. after World War I B. after World War II C. after the Cold War D. When did India and Pakistan gain independence
What is 33 divided by 1862
Rachel Carson’s warning in Silent Spring was focused on _______. a. overgrazing by livestock b. global warming c. the misuse of pesticides d. fish stock decline
which religion believes in mecca
what would you think JROTC will be like 100 years from today
What is the difference between similar and congruentent
Vladimir Lenin and the Bolshevik party had the support of all the following people EXCEPT the: a. proletariat b. army c. tsar d. peasant farmer