Practice problem
A number plus 333 is 999. Write an equation for this problem.
n+3=n+9n+3=n+9n+3=n+9
9+n=39+n=39+n=3
3+9=n3+9=n3+9=n
n+3=9n+3=9n+3=9
Type a concept, like “slope” or “photosynthesis”.
