Math Problem Statement

Expand and simplify 8 + 5(2x - 7).

Solution

Let’s solve the given expression step by step and confirm the solution.

Problem:

Expand and simplify 8+5(2x7)8 + 5(2x - 7).


Solution:

  1. Distribute the 5 to each term inside the parentheses: 5(2x7)=52x57=10x355(2x - 7) = 5 \cdot 2x - 5 \cdot 7 = 10x - 35

  2. Substitute this back into the expression: 8+10x358 + 10x - 35

  3. Combine like terms (constants): 835=278 - 35 = -27

  4. Final simplified expression: 10x2710x - 27


Final Answer:

10x2710x - 27

The handwritten solution expanded correctly but didn't combine the constants 8358 - 35. The corrected final expression is 10x2710x - 27.

Would you like further clarification on any part?


Related Questions:

  1. What does "expand" mean in algebraic terms?
  2. How can you identify like terms in an expression?
  3. What happens if there are no constants to combine after expanding?
  4. How do parentheses affect the order of operations?
  5. How would the solution change if the equation was 8+5(2x+7)8 + 5(2x + 7)?

Tip:

When expanding, always distribute carefully and combine like terms at the end for full simplification!

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Math Problem Analysis

Mathematical Concepts

Algebra
Expanding brackets
Simplification

Formulas

Distributive property: a(b + c) = ab + ac

Theorems

Distributive property of multiplication over addition

Suitable Grade Level

Grades 7-9