Examine this system of linear equations.
y – x = 2,
x + y = 4

Which is a solution of the system of equations?

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.

Answer is either b or c