Respuesta :

kosala1478

Step-by-step explanation:

7x-3

x represents the unknown number

absor201

Answer:

7x-3

Step-by-step explanation:

Lets assume that the number be x.

Now it says that seven times a number = 7x

Than,

Three less than seven times a number means subtract 3 from 7x.

The final expression we get is:

7x-3 ....