An equation for the additional number of donuts, x, you need to bake to have enough for each student is 8 + x = 11, and the value of x is 3.
An equation is a mathematical statement showing the equality or equivalence of two or more mathematical expressions.
The total number of students in your class = 8
The total number of donuts to bake = 11
Let the additional number of donuts = x
Equation:
8 + x = 11
x = 3 (11 - 8)
Thus, the equation is 8 + x = 11 with x as 3.