Question

Solve the formula for a. P= a + b + c a =

Answer 1

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$P = a + b + c$

$a + b + c = P$

Subtract sides c

$a + b + c - c = P - c$

$a + b = P - c$

Subtract sides b

$a + b - b = P - c - b$

$a = P - b - c$

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Answer 2

Answer:

a = P - b - c

General Formulas and Concepts:

• Order of Operations: BPEMDAS

• Equality Properties

Step-by-step explanation:

Step 1: Define equation

P = a + b + c

Step 2: Solve for a

1. Subtract b on both sides:                    P - b = a + c
2. Subtract c on both sides:                     P - b - c = a
3. Rewrite:                                                 a = P - b - c