MA001: College Algebra Sections Unit 1: Basic Algebra Concepts 1.3: Linear Equations in One Variable 1.3.5: Solving Equations involving Fractions Tyler Wallace's "Linear Equations - Fractions" and "Linear Equations - Distributing with Fractions"

This is the question that I didn’t understand could anyone please help me to this question.
it’s first question
and the second question.