Algebra: Writing a mathematical equation using a Letter.

Example : x + 4 = 5

**Variable**- a

**letter**

that represents

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.**

Steps:

1. Isolate the variable.

2. Cancel using the opposite of

the number.

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

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