Anumber decreased by twelve is twice the opposite of ten? what is it?

The Number is -8.

Step-by-step explanation:

Let the number be x.

Now given:

A number decreased by twelve;

It means 12 is subtracted from the number.

Hence the equation can be framed as;

Also given;

twice the opposite of ten

Opposite of 10 = -10

Twice the opposite of 10 means 2 is multiplied with opposite of 10.

Hence twice the opposite of ten =

Now A number decreased by twelve is twice the opposite of ten

framing it in equation form we get;

Solving the above equation we get;

Hence the Number is -8.

i used to know how to do this in 7th but i forget easily

step-by-step explanation: