Six less than seven times a number is equal to -20

7x-6= -20

If you need this solved further, then it would be

x=2

Step-by-step explanation:

a number can be anything, so we represent it with x. 6 less means you subtract six, and seven times a number means 7x. Put this as an equation and you have

7x-6=-20. If you need this solved even more, after applying to both sides, its

x=2.

Hope this helps!

b

step-by-step explanation:

the word superfluous means unnecessary