2.  Solve and algebraic equation and provide a justification for each step.  Identify which property of equality or congruence is being used.

3. A proof is an argument that uses logic, definitions, properties, and previously proven statements to show that a conclusion is true. If you’ve ever simplified an expression or solved and equation in Algebra, then you’ve done a proof.

4. Remember this ?

6. Solve and algebraic equation and provide a justification for each step.

9. Identify which property of equality or congruence is being used.

10.  Solve and algebraic equation and provide a justification for each step.  Identify which property of equality or congruence is being used.