(a) 3n - 2 = 46
Step I: 3n - 2 + 2 = 46 + 2 [Adding 2 both sides]
⇒ 3n = 48
Step II: 3n/3 =48/3 [Dividing both sides by 3]
⇒ n =16
(b) 5m + 7 = 17
Step I: 5m + 7 - 7 = 17 - 7 [Subtracting 7 both sides]
⇒ 5m = 10
Step II : 5m/5 = 10/5 [Dividing both sides by 5]
⇒ m = 2
(c) 20p/3 = 40
Step I: 20p/3 x 3 = 40 x 3 [Multiplying both sides by 3]
⇒ 20p =120
Step II: 20p /20 = 120/20
⇒ p = 6
(d) 3p/10 = 6
Step I: 3p/10 x 10 =6 x 10 [Multiplying both sides by 10]
⇒3p = 60
Step II: 3p/3 = 60/3 [Dividing both sides by 3]
⇒ p = 20
