Question

How would you explain the way to solve #18 for the value of the variable?

Answer 1

• x = 75°

Explanation:

We know that:

• 2x - 30 = 45 + x (Reason in picture)

Solution:

• 2x - 30 = 45 + x
• => 2x - x = 45 + 30
• => x = 75°

Hence, the value of x is 75°