Can someone please help me figure out this problem. just figure out what 1,2, and 3

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?