I forgot how to do this

Here is another math questions. i will keep asking different questions. 4^2x=6

Given: transversal t passed through parrallel lines r and s.prove: < 3 = < 6 < 4 = < 8what is the next step in the proof? choose the most logicsl approach

Me find the answer and explain the process to find the answer of the problem appreciate it : )