Question

eli had too many fish in his old fish tank. he got a new fish tank and moved 18 fish from the old tank to the new tank he still had 23 fish in his old tank.

how many fish were in eli's o;d fish tank tank at the start?

Answer 1

Let \( x \) be the number of fish in Eli's old fish tank at the start. When Eli moved 18 fish from the old tank to the new tank, he was left with 23 fish in the old tank.

We can express this with the equation:

\[
x - 18 = 23
\]

Now, we can solve for \( x \):

\[
x = 23 + 18
\]
\[
x = 41
\]

So, Eli had **41 fish** in his old fish tank at the start.