Exercise 2.3
Solve the following equations and check your results.
Solution:
Q1. 3x = 2x + 18
Soluion: 3x = 2x + 18
⇒ 3x – 2x = 18
⇒ x = 18
Q2. 5t – 3 = 3t
Soluion: 5t – 3 = 3t
⇒ 5t – 3t = 3
Q3. 5x + 9 = 5 + 3x
Soluion: 5x + 9 = 5 + 3x
⇒ 5x – 3x = 4 – 9
⇒ 2x = -5
Q4. 4z + 3 = 6 + 2z
Soluion: 4z + 3 = 6 + 2z
⇒ 4z – 2z = 6 – 3
⇒ 2z = 3