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2 years ago

I need to solve for x

Mathematics

1 answer:

amm18122 years ago

7 0

Answer:

mAB = 7

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Algebra I

Terms/Coefficients/Degrees

Step-by-step explanation:

Step 1: Define

Set up equation.

mAB + mBC = mAC

x + 4 + 4 = 3x + 2

Step 2: Solve for x

Combine like terms: x + 8 = 3x + 2
Isolate x terms: 8 = 2x + 2
Isolate x term: 6 = 2x
Isolate x: 3 = x
Rewrite: x = 3

Step 3: Find AB

Define: mAB = x + 4
Substitute in x: mAB = 3 + 4
Add: mAB = 7

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==================================================

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