The equation is 6 = x + 2.

(Apply subtraction property of equality: If a = b, then )

6 – 2 = x + 2 – 2          (Subtract 2 from each side)

6 – 2 = x + 0                (Apply additive inverse property: 2 – 2 = 0)

x = 4                            (Subtract: 6 – 2 = 4)

Check:

To check the solution substitute x = 4 in original equation.

6 = 4 + 2

6 = 6                          (Add: 4 + 2 = 6)

The equality is true.

The value of x = 4.