Show how to simplify 6A - 7B + 11 - 9A + 6B - 15.

Question:

Show how to simplify {eq}6A - 7B + 11 - 9A + 6B - 15 {/eq}.

Algebraic Expressions

Algebraic expressions are made up of algebraic terms with mathematical operations in between them. An algebraic term is built up from constants and variables.

Answer and Explanation:

Simplifying the expression below starts with arranging them alphabetically with the constants at the end:

{eq}6A - 7B + 11 - 9A + 6B - 15 {/eq}

{eq}6A - 9A- 7B + 6B + 11 - 15 {/eq}

Then follow the operations:

{eq}(6A - 9A)+(- 7B + 6B) + (11 - 15) {/eq}

{eq}-3A- B - 3 {/eq}

Thus, the expression {eq}6A - 7B + 11 - 9A + 6B - 15 {/eq} upon simplification is {eq}-3A- B - 3 {/eq},


Learn more about this topic:

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Evaluating Simple Algebraic Expressions

from ELM: CSU Math Study Guide

Chapter 6 / Lesson 3
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