Question

Evaluate the expression 12x-7 for the values of x given in the first column. Value of xValue of expression

Answer 1

The given expression is,

$12x-7\text{ ----(2)}$

Substitute x=1 in the above expression (1) to evaluate the expression for x=1.

$12\times1-7=5$

So, when x=1, the value of expression is 5.

Substitute x=2 in the expression (1) (1) to evaluate the expression for x=2.

$12\times2-7=24-7=17$

So, when x=2, the value of expression is 17.

Substitute x=3 in the expression (1) (1) to evaluate the expression for x=3.

$12\times3-7=36-7=29$

So, when x=3, the value of expression is 29.

Substitute x=5 in the expression (1) to evaluate the expression for x=5.

$12\times5-7=60-7=53$

So, when x=5, the value of expression is 53.

Substitute x=8 in the expression (1) to evaluate the expression for x=8.

$12\times8-7=96-7=89$

So, when x=8, the value of expression is 89.

Therefore, the table of values is,

1 5

2 17

3 29

5 53

8 89