Math Problem Statement

Several mathematical expressions and problems involving algebraic simplification, substitution, and evaluation, as shown in the uploaded image.

Solution

The image contains several mathematical problems. I will extract and solve them for you step by step. Please confirm if you'd like detailed solutions for all the problems or specific ones.

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Math Problem Analysis

Mathematical Concepts

Algebraic expressions
Simplification
Substitution
Rational expressions
Square roots

Formulas

Simplification rules for fractions
Properties of exponents
Square root simplification
Basic arithmetic operations

Theorems

Properties of equality
Distributive property
Fundamental operations in algebra

Suitable Grade Level

Grades 7-9

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