eg: x,a,n
Expression any single number or variable, or combination of operations (-, +, ×, ÷) involving numbers and variables
eg: 5n, 8+, x+1, 2y-7
1+1=2 (equation)
Value a know or calculated amount
Constant a number that does not change and it increase or decrease the value of an expression.
Numerical Coefficient a number that multiples the variable.
eg: 2t
the 2 is the numerical coefficient and the t is the variable
For example:
A group of students talking, 2 friends leave the group. Write an expression for the number of students in the group after the 2 people leave.
the answers is either: g-2 or s-2
The variable is g is for group and s for students. Constant is the minus (sign) because it`s decreasing.
Hope you understand it!
Here is the picture!!
thank you for the post now I know my algebra but wheres the link?
ReplyDeleteGood job.....now I know that the unknown numbers will be represent as an letters like x,a,n
ReplyDeletethanks, I understand algebra more now
ReplyDeleteGreat job this is perfect! I loved how you posted a picture and a video!
ReplyDeletethanks, adding a video makes it more easy to understand.
ReplyDeleteGreat job! But how will you know if its the right number that represent the letter
ReplyDeleteohhhh ! thanks to your video , it help me to study with my dad :))
ReplyDelete