My teacher gave us the answers but we just need to show the work for solving the problems. Please help me

Answer:
12
Step-by-step explanation:
58 = 5x - 2....because if the two lines are parallel the corresponding angles are congruent
58 + 2 = 5x
60 = 5x
[tex] \frac{60}{5} = \frac{5x}{5} [/tex]
x = 12
hope it helps
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