Raymond B. answered • 06/08/22
Tutor
5
(2)
Math, microeconomics or criminal justice
Let x = "a number"
sum of a number and 8 is
x+8
or use N= "a Number" then
N+8 = the sum of a Number and 8
unknown variables are commonly the end of the alphabet, such as x, y or z
or a letter that starts with the same letter as the variable such as N for Number
