Algebra: Writing a mathematical equation using a Letter.
Example : x + 4 = 5
Variable - a letter
a number in an algebraic equation or expression
Constant - the integer in an algebraic expression or equation
Expression - pattern, many
answers ex. 5x, 5x5
Equation - only has one answer, has an equal sign ex. 5x=25, 5x5=25
Solving an Algebraic equation.
1. Isolate the variable.
2. Cancel using the opposite of
3. Constant is cancelled with the zero pair.
4. Balance, do the same
operation on the other side of the = sign.
5. Verify to check