Write an equation and solve: Four times a number, decreased by 4 is 8

1 answer

Let's let the number be represented by the variable x.

The equation can be written as:

4x - 4 = 8

To solve this equation, we need to isolate the variable x.

Adding 4 to both sides of the equation:

4x - 4 + 4 = 8 + 4
4x = 12

Dividing both sides by 4:

4x/4 = 12/4
x = 3

Therefore, the value of the number is x = 3.