what is x and y
You have two equations in two unknowns, x and y, and the standard way to approach such problems is to "eliminate one of the unknowns" and change the problem to one involving a single equation in one unknown. I can see two ways to approach this particular problem, eliminate x or eliminate y.Eliminate x
4x - 6y = 10
Subtracting the second equation from the first results in
Hence y = -6/7 and substitution into either of the two equations you started with will yield x.
12x + 3y = 12
2x - 3y = 5
and adding the two equations yields
Hence x = 17/14 and substitution will yield y.
I hope this helps,