cbse 7 ex 4.2

Simple Equations Exercise 4.2 1). Give first the step you will use to separate the variable and then solve the equation: (a) x – 1 = 0                               (b) x + 1 = 0 (c) x – 1 = 5                               (d) x + 6 = 2 (e) y – 4 = – 7                            […]