The equation is
(Add 25 to each side)
k + 0 = 30 + 25 (Apply Additive inverse property:25 – 25 = 0)
\k = 55 (Add: 30+25= 55)
\Check:
\To check the solution, substitute k= 55 in original equation.
\30 = 30 (Subtract: 55-25 = 30)
\The statement is true.
\The value of k = 55.