Solve the system by the addition method. 4x=4y=4 2x-4y=2

Question

Solve the system by the addition method.

4x=4y=4

2x-4y=2

Answer 1

As written

4x = 4y = 1

2x – 4y = 2

the question doesn't work

If it's instead supposed to be

4x + 4y = 4

2x – 4y = 2

The adding the two equations together gives

6x = 6 which means x = 1

Plugging x back into either of the first two equations gives y = 0

And if it's

4x – 4y = 4

2x – 4y = 2

You subtract the two equations and get the same final result: x =1 and y = 0