Assuming that angle BAE and angle DAE are congruent, we want to set the equations 3x - 24 and x + 10 together to make it like this 3x - 24 = x + 10. Subtract x on both sides to get 2x - 24 = 10. Add 24 on both sides to get to this equation 2x = 34. Divide 2 on both sides to get your x value which is 17.
For a parallel line the slope of the lines/equations will be the same but for perpendicular line the slope will be the negative reciprocal -(1/4)*x+b b=2-(-1/4)*8
