Question

7a+1 (a=2) 11x-100 (x=9) 5) 7-7x (x=2)
find the value of following expression ​

Answer 1

Answer:

Substituting the given Values -

Given that ;

7a + 1

• a = 2

7 ( 2 ) + 1

14 + 1

15

11x - 100

• x = 9

11 ( 9 ) - 100

99 - 100

- 1

7 - 7x

• x = 2

7 - 7 ( 2 )

7 - 14

- 7

Answer 2

a) 7a+1 (a=2)

substituting value of a as 2:

7(2) + 1

15

Answer: 15

b) 11x-100 (x=9)

substituting value of x as 9:

11(9) - 100

-1

Answer: -1

c) 7-7x (x=2)

substituting value of x as 2:

7-7(2)

-7

Answer: -7