** ** __RATIONAL NUMBERS , LINEAR EQUATIONS IN ONE VARIABLE__

- Which rational number is called identity element for addition of rational numbers ?
- 3x – 3 = 2x + 2 , the value of x is

- Write the present age of a mother , if she is 2 years less than three times her son’s age ,if her son’s age is x years.

4 .Which rational number is multiplicative identity for rational numbers ?

- If 2x -2 = x +3 , then x is

- Additive inverse of is

7 . Find tha value of

8.Evaluate : +

9.Evaluate : +

10.Evaluate : +

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