The difference of twice a number and 2 is -21

2x-2= -21

Step-by-step explanation:

-9.5

Step-by-step explanation:

We can create an equation to represent this, where is the missing value.

Now we can solve for by isolating it on one side of the equation.

Add 2 to both sides:

Divide both sides by 2:

Hope this helped!

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right