Question

What is the equation? If four times a number is decreased by five, the result is 31. Determine the number.

Answer 1

In algebra, an equation can be defined as a mathematical statement consisting of an equal symbol between two algebraic expressions that have the same value.

The most basic and common algebraic equations in math consist of one or more variables.

Explanation:

If four times a number is decreased by five, the result is 31. Determine the number.

THE NUMBER IS 51

Answer 2

Equation: 4n - 5 = 31

Number: 9

Explanation:

Variable n = number

4n - 5 = 31

4n - 5 + 5 = 31 + 5

4n = 36

n = 9

Check your work:

4(9) - 5 = 31

36 - 5 = 31

31 = 31

Correct!