Question

What is the value of the y variable in the solution to the following system of equations?

3x + y = 11
-3x + 2y = 1

a. 2
b. 4
c. y can be any number as there are infinitely many solutions to the system.
d. There is no y value as there is no solution to the system.

Answer 1

add the two equations together

Answer 2

didn't we do this one already?

Answer 3

No

Answer 4

okay well chose one of the equations and set it equal to x

Answer 5

3x+11= y?

Answer 6

yea sure either one
so on that one just subtract 11 and divide by 3

Answer 7

then you'll get
(y-11)/3 = x

Answer 8

and now plug the (y-11)/3 into the other equation as if it was x

Answer 9

So (-3x +y -11)/3 + 2y=1 ?

Answer 10

@Vocaloid