Question

Stephanie has five more fish in her aquarium than Brett has in his. The two have a total of 31 fish. How many
Fish do Stephanie and Brett each have?

Answer 1

let $x$ be the number of fish Brett has and let $x+5$ be the number of fish Stephanie has.

$x+(x+5)=31$

$x+x+5=31\\\\2x+5=31\\\\2x=26\\\\x=13$

Brett has 13 fishes

$x+5=31\\\\(13)+5=18$

Stephanie has 18 fishes

Verify

$x+(x+5)=31\\\\13+(13+5)=31\\\\13+18=31\\\\31=31\\\\LS=RS$