**Algebra**- Writing mathematical phrases using letters to represent numbers.

**Variable**- A letter that represents a number in an algebraic expression or equation.

**Constant**- The integer in an algebraic equation or expression.

**Equation**- Only has one answer and has an equal sign (=).

**Solving an Algebraic Equation:**

1) Isolate the variable

2) Cancel the constant using zero pair

3) Balance, doing it to both sides

4) Verify to check

**One Step Equation**:

**Two Step Equation**:

1. Isolate the variable

2. Cancel the constant

3. Balance

4. Simplify the variable

5. Balance

6. Verify

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