Solving Equations and Inequalities 2.1

SOLVING EQUATIONS: THE ADDITION PRINCIPLE 2.1
a. Determine whether a given number is a solution of a given equation.
b. Solve equations using the addition principle.

Objective a
Determine whether a given number is a solution of a given equation.



Example A





Example B



Objective b
Solve equations using the addition principle.



Example C



Example D