Solve the system of equations: 2(3x - 2y) + 1 = 7x, 12(x + y) - 15 = 7x + 12y

Simplify the first equation: 6x - 4y + 1 = 7x, which gives -x - 4y = -1, or x + 4y = 1.

Simplify the second equation: 12x + 12y - 15 = 7x + 12y, which gives 5x = 15, so x = 3.

Substitute x = 3 into the simplified first equation: 3 + 4y = 1, so 4y = -2, which means y = -1/2.

Solution: x = 3, y = -1/2.