(10 POINTS) Given the following formula, Solve for a. S= a+b+c/2

A. A= s- b+c/2
B. A= 2s - b + c
C. A= 2s - b - c
D. A = s - b-c/2

C. a = 2s - b - c

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of Equality

Step-by-step explanation:

Step 1: Define

Step 2: Solve for a

Multiply 2 on both sides:                     Subtract b on both sides:                    Subtract c on both sides:                    Rewrite:                                                

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