sylviemartin sylviemartin
  • 17-09-2021
  • Mathematics
contestada

Find the value of x and y
x+4y=21, 4x-16=y

Respuesta :

doomdabomb
doomdabomb doomdabomb
  • 17-09-2021
Answer:

x = 5, y = 4

Step-by-step explanation:

x + 4y = 21

4x - 16 = y

x + 4(4x - 16) = 21

x + (16x - 64) = 21

(17x - 64) = 21

17x = 85

x = 85/17

x = 5
___________________

x + 4y = 21

5 + 4y = 21

4y + 5 = 21

4y = 16

y = 16/4

y = 4
___________________
Answer Link

Otras preguntas

Which statement is true of the antagonist of a character vs. nature conflict? The antagonist is generally more powerful than the protagonist. The antagonist is
Which metal exist in liquid state and can be cut with knife ?
What is the IMA of the 1 st class lever in the graphic given? 2 3 0.5
which of the numbers below are whole numbers A.7934.26 B.0.7735 C.878 D 1 E.638793.7 F.415.167​
A map has a scale of 3.5 inches = 20 kilometers. If the distance between two cities on the map is 4.9 inches, what is the actual distance between the two cities
witch of the fillowing are two eighth notes equal to​
Residential construction is expanding in Florida, the expansion has caused fragmentation of habitats, one of the results of the increased construction is a d
Select all that aply
A 43 degree angle can be classified as which angle type ?
anyone know the answer ‍♂️