Answer
The two consecutive even house numbers are $396$ and $398$.
Work Step by Step
$\bf{\text{l. Familiarize yourself with the problem.}}$
If one house number is the even number $x$,
the next even number is $x+2$.
We need the sum of $x$ and $(x+2)$ to be $794$.
$\bf{\text{2. Translate to mathematical language. (This often means writing an equation.)}}$
$x+x+2=794$
$\bf{\text{3. Carry out some mathematical manipulation. (This often means solving an equation.)}}$
$ 2x+2=794\qquad$... subtract $2$
$ 2x=792\qquad$... divide with 2
$x=396$.
Then, $x+2=398.$
The two consecutive numbers are $396$ and $398$.
$\bf{\text{4. Check your possible answer in the original problem.}}$
Is $794$ the sum of $396$ and $398 $?
Yes.
$\bf{\text{5. State the answer clearly, using a complete sentence.}}$
The two consecutive even house numbers are $396$ and $398$.
