1
Q
expression
A
terms with no equal sign
e.g a + 1
2
Q
identity
A
one side is identical to the other
e.g 4 + 9 = 7 + 6
3
Q
formula
A
equation use to find the rules
e.g l = vwh
4
Q
what to always do in trail and improvement?
A
- always go one above and one below your answer.
- go into another column before you get the answer
5
Q
Equation
A
solved to give answer for x
has an = sign
e.g x = 6 + 9
