Question

The answer is y = 4, right?

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

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

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

Answer 1

yup..

Answer 2

Okay, thanks!

Answer 3

Can you help me with this one? I can't remember how to solve it. :)

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

3x + y = 6
6x + 2y = 8

zero
4
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 4

ok..so what u do basically is multiply 2 on both sides of eqn 1...(the first eqn)...then subtract the two eqns...u will get 0x=4..impling no solution the system...since x would be 4/0 thats infinity...

Answer 5

basically if u see u'll find that 6x+2y=12 ( dividing by 2 on both sides will give u eqn 1)..and 6x+2y=8..clearly thats not possible..

Answer 6

Oh, ok... So would x = 4, and y = -6?

Answer 7

no..i think it wud be 7/3

Answer 8

@Niall
Yes.
Add the two equations LHS to LHS and RHS to RHS. The result is 3y = 12.

Answer 9

if u mean the first ques u posted..

Answer 10

I'm gonna post some screen shots of my problems. Can someone check them for me and make sure that I have all of the correct answers?

Answer 11

just ques 4 is wrong i think...the others r correct..u posted ques 4..