Definitions we need to study

These are the new definitions that will help us during this new part in math

Variable- letter that represents an unknown number

example- x,a,n


expression- any single number or variable, or combination of operations involving numbers and variables

ex- 5,n,8+,x+1,2y-7


value- a known or calculated ammount


constant number- a number that does not change and it increase or decrease the value of an expression.


numerical coefficient- a number that multiplies the variable

example- 2t