Question

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

2x − y = 6
4x − 2y = 12

A. 0

B. 4

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

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

Answer 1

D [THERE IS NO X(MEANING THE SYSTEM IS INCONSISTENCE)]

Answer 2

if u double the first equation u can see it is the same as the second.

So there are said to be infinitely many solutions in this case.

Then the answer is C

Answer 3

The three Math Idol judges have been eliminating contestants all day! The number of one-step equations and two-step equations who have been eliminated today is equal to 1150. If three times the number of one-step equations minus twice the number of two-step equations is equal to 1300, how many one-step equations auditioned today?

Answer 4

x+y=1150
3x-2y = 1300

U should be able to do it by now, double first one and add...

Answer 5

-y = -2x+6
y = 2x-6

4x-2(2x-6)=12
4x-4x+12=12
0=0
D

Answer 6

Another one .....

If the system reduces to 0=0 (true) then the system is said to have an infinite number of solutions.

Answer 7

He's right.