1 unknown variable equations
2) Is number 2 a typo? I'm assuming you mean y = 6x - 13x + 5. This simplifies to y = -7x + 5. This cannot be factored anymore. If you want a solution, set y to 0, we get x = 5/7.
3) Slope, Line Equation, Distance, and Midpoint Slope is not defined, because this is a vertical line. The math will show you how to calculate slope
4) 3y + 5x = 4 Rearrange your equation in y = mx + b form where slope is m.
3y = -5x + 4
y = -5/3 + 4/3
slope (m) = -5/3