\

The equation is .

According to multiplication property of equality:

For any number a, b and c, If a = b then ac = bc.

                 (Multiply each side by 2)

                         (Cancel common terms)

                              (Multiply:) \ \

Addition property of equality: if a = b, then a + c = b + c.

                  (Add 6 to both sides)

                             (Additive inverse property: )

d = 34                                  (Add: 28 + 6 = 34)

Check:

To check the solution, substitute d = 34 in original equation. 

                                           (Subtract: )

\

                                  (Divide:)

Compare the values, the equation is true.

The value of d = 34.