Algebra Equaitons
What is an Equation?
An equation says that two things are equal. It will have an equals sign "=" like this:
Variable:
A Variable is a symbol for a number we don't know yet. It is usually a letter like `x` or `y`.
Constant:
A number on its own is called a Constant.
Coefficient:
A Coefficient is a number used to multiply a variable (`4x` means `4` times `x`, so `4` is a coefficient)
Term:
A Term is either a single number or a variable, or numbers and variables multiplied together.
Expression:
An Expression is a group of terms (the terms are separated by + or − signs)
`4x-7=5`
That equation says: what is on the left `(4x -7)` is equal to what is on the right `(5)`
So an equation is like a statement "this equals that"
Parts of an Equation
Variable:
A Variable is a symbol for a number we don't know yet. It is usually a letter like `x` or `y`.
Constant:
A number on its own is called a Constant.
Coefficient:
A Coefficient is a number used to multiply a variable (`4x` means `4` times `x`, so `4` is a coefficient)
Term:
A Term is either a single number or a variable, or numbers and variables multiplied together.
Expression:
An Expression is a group of terms (the terms are separated by + or − signs)