Let x be the unknown number. the expression is: x + 10.
x is a variable that represents an unknown number and its value depends on the algebraic expression it is used in.
an other expression for a unknown number an other expression for a unknown number
n/8 + 3
The expression that represents the product of a number 5 and b is 5b.
It would be: 6/x whereas x is the unknown variable
4-(n/7) *the foreward slash represents the divided by sign
G = C/6 where C is the number in the class and G is the number in each group.
The expression which represents half the sum of five and a number b is (b+5)/2.