2х-4у=34

2x - 4y = 34

• Divide by 2: x - 2y = 17
• Solve for x: x = 2y + 17
• Or solve for y: y = (x - 17)/2

General solution (in R^2): (x, y) = (17 + 2t, t), t ∈ R If you want integer solutions: t ∈ Z, so x = 17 + 2t (odd), y = t.

If this is part of a system, share the other equation and I’ll solve it together.