Chapter 6.3, Problem 5LC

To determine

To find:Use of addition property of equality in adding equations.

Answer to Problem 5LC

Explanation of Solution

Given information: Use of additive property and any two equations.

Concept used:Additive property of equality states that if $a=b$ , then $a+c=b+c$ . Or adding a number each side of an equation, results an equivalent equation.By above additive property it is cleared that same term from both sides of an equation is eliminated.And while using elimination method to add two equations, these common terms from both equations are eliminated, because of this additive property of equality only.

Conclusion: Thus, additive property of equality is used in adding two equations when common terms are eliminated from both equations using elimination method.