Salutations!
Let the number be [tex]x[/tex]
Your equation would be [tex]x+8=100[/tex]
Now that we have our equation, lets solve this!
Solve this by keeping the variables aside, and the numbers aside
[tex]x=100 -8[/tex]
The sign would change because your are isolating the number
[tex]x=100-8[/tex]
[tex]x= 92[/tex]
Hope I helped (:
Have a great day!
