Question

He sum of a number and twenty is greater than four times the number decreased by one.

Answer 1

Your number is 7

Explanation:

x+20= 4x-1

-x -x

20= 3x-1

+1 +1

21= 3x

X= 7

Hope this helped have a good day! :)

Answer 2

x = the unknown number

x + 20 > 4x - 1

The sum(addition) of a number and twenty(so x and 20 are added together) is greater than( > ) four times(multiplication) the number(so 4 and x are multiplied together) decreased(subtraction) by one(so 4x is subtracted by 1).

If you need to solve this, you need to isolate/get the variable "x" by itself in the inequality:

x + 20 > 4x - 1 Subtract x on both sides to get "x" on one side of the inequality

20 > 3x - 1 Add 1 on both sides

21 > 3x Divide 3 on both sides to get "x" by itself

7 > x or x < 7 [x is any number less than 7]