Which ordered pairs in the form (x, y)(x, y) are solutions to the equation

7x−5y=287x−5y=28 ?

Step-by-step explanation:

I'll assume that you meant:

7x−5y=28

7x−5y=28

These equations are identical, so any x-y pair that satisfies one satisfies the other.  Unfortunately we don't have enough information to determine either x or y.  But we could (arbitrarily) choose x = 5 and find the corresponding y:

7(5) - 5y = 28, or

35 - 5y = 28, or

7 = 5y, or y = 7/5

Thus, (5, 7/5) satisfies both equations, but this is far from being the only solution.

Double check to ensure that you have copied this problem down correctly.  Also:  If you're going to present two equations, separate them with a space or write them in a column as I did (above).