You buy a laptop that costs £899, including vat at 20%. how much of the purchase price is vat?

For this case we propose a rule of three:

£ 899 ----------------> 100%

x ----------------------> 20%

Where "x" represents the amount of money corresponding to the VAT.

So, the VAT is £ 179.8

The purchse price of VAT is £ 179.8

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)