<prompt> Simplify the following expression into its simplest form.2x 9 2x 7  <response>: The given expression is 2x 9 2x 7. Distributing the 2 in the first term, we get 2 x 2 9 2x 7.This simplifies to 2x 18 2x 7.Now, distributing the 2 in the second term, we get 2x 18 2 x 2 7.Which simplifies to 2x 18 2x 14.Combining like terms which means to add or subtract terms with the same variable, we get 4x 32. 