Question

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

3x − 6y = 3
7x − 5y = −11

−2

−3

x can be any number as there are infinitely many solutions to the system.

There is no x value as there is no solution to the system

Answer 1

have you tried substitution?

Answer 2

no

Answer 3

Want to give it a shot? First thing you can do is isolate x on each equation. That means x has to be by itself on each equation. Can you do that?

Answer 4

i can try

Answer 5

3x − 6y = 3

Answer 6

divide X on both sides?

Answer 7

multiply the top by 5 and the bottom by 6 this means you ca eliminate y i'll show you

Answer 8

42x-30y=-66 ; this is x6
15x-30y=15; this is x5

now subtract to get
27x=-81

now divide to get
x=-81/27 = -3