1. The Addition property of equality states that, if:
Then:
2. The Subtraction property of equality states that, if:
Then:
3. According to the Division property of equality, if:
Then:
4. According to the Multiplication property of equality, if:
Then:
In this case, you have the following equation:
You can identify in the picture that in Step 1, each term inside the parentheses was multiplied by the fraction, then the Distributive property was applied:
In Step 2