Question 2(d) Give first the step you will use to separate the variable and then solve the equation: 4x=25
4x=25 ⇒4x4=254 [Dividing both sides by 4] ⇒ x=254
Question 2(h) Give first the step you will use to separate the variable and then solve the equation: 20t = -10
Question 3(a) Give first the step you will use to separate the variable and then solve the equation: 3n - 2 = 46
Question 3(c) Give first the step you will use to separate the variable and then solve the equation: 20p3=40
Question 1(a) Give first the step you will use to separate the variable and then solve the equation: x - 1 = 0
Question 1(b) Give first the step you will use to separate the variable and then solve the equation: x + 1 = 0