Question

In the equation 2x + 3y = 19, what is the variable? Choose

the best answer.
A. x
B. y
C. =
D. Both x and y are variables
NEED THIS BY TODAY!!!!​

Answer 1

It was the extremely logical Rene Descartes who decided to use letters at the beginning of the alphabet for constants and letters at the end of the alphabet for unknown variables.

Answer: D. Both x and y are variables

Answer 2

D. Both x and y are variables

Explanation:

2x+3y = 19

Both x and y are variables, since they are both unknown quantities