nevaehgrimball nevaehgrimball
  • 23-10-2020
  • Mathematics
contestada

Solve the following system of equations using substitution, show all steps. 2x-4y=20 / x= 4

Respuesta :

bradley2005scopb88it
bradley2005scopb88it bradley2005scopb88it
  • 23-10-2020

Answer:

(4, -3)

Step-by-step explanation:

Since we know that X = 4, when can set X = 4 in the other equation in order to solve for Y

2x - 4y = 20

2(4) - 4y = 20

8 - 4y = 20

-8           -8

-4y = 12

-4y/-4 = 12/-4

y = -3

Since we already know X = 4, the intersection point or solution to the System is (4, -3)

Hope this helps!

Answer Link

Otras preguntas

Read the passage and answer the question that follows: Despite our best efforts as parents, we will always make mistakes in raising our children. It's inevitabl
please help me the choices for all the questions are anti-federalists or federalists
please help with this excercise
A refigarator magnet uses 5/8inch of magnetic tape .How many refigarator magnets can you make with 10inches of magnetic tape
Why was the battle of bunker hill considered a patriot victory
Please help me with this math problem
can someone plzz help me wit this !!!??
Find the distance and midpoint for the points (5, 5) and (1, 2).
Consider a firm with a contract to sell an asset for $138,000 five years from now. the asset costs $74,000 to produce today. given a relevant discount rate on t
What was the main economic activity of tribal people who first lived in the Nile River Valley? a) farming b)hunting animals c)domestication of animals d)trading