For any integer a,is: `a-:(-1)= -a ?`Take different values of 'a' and check.

For any integer a, is: a -: 1=1? Take different values of 'a' and check.

Take different values of x and values of 5 x + 1.

For any integers a, what is (-1)xx a equal to ?

For any integer a , what is [(-1) xx a] equal to?

Take different values for x and find values of 3x + 5.

How many integer values exists for a certain value of 'l' ?

For any integer a , does there exist any value of a such that a+1=a ?

Now take x = 2, a = 1 and b = 3, verify the identity. • Take different values for x, a and b for verification of the above identity.

The difference of an integer P and (-8) is 6. What is the value of 'P' ?

25% of the students in a school are girls and others are boys. Form an equation and draw a graph for this. By observing the graph, answer the following: Take three different values for number of boys and find the number of girls. Similarly take three different values for number of girls and find the number of boys?