Simplifying Algebraic Expressions: (8x - 5) + (-2x + 7)
This article will guide you through simplifying the algebraic expression (8x - 5) + (-2x + 7).
Understanding the Expression
The expression involves:
- Variables: "x" represents an unknown value.
- Coefficients: The numbers multiplied by the variables (8 and -2).
- Constants: The numbers without variables (-5 and 7).
- Parentheses: They help group terms.
Simplifying the Expression
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Remove Parentheses: Since we're adding the expressions, the parentheses don't affect the signs.
- (8x - 5) + (-2x + 7) = 8x - 5 - 2x + 7
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Combine Like Terms: Combine terms with the same variable ("x") and the constant terms:
- 8x - 2x - 5 + 7
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Simplify:
- 6x + 2
Final Result
Therefore, the simplified form of the expression (8x - 5) + (-2x + 7) is 6x + 2.
Key Points to Remember:
- Combining Like Terms: You can only combine terms that have the same variable and exponent.
- Order of Operations: Remember to follow the order of operations (PEMDAS/BODMAS) when simplifying complex expressions.
- Practice: Regular practice with algebraic expressions helps you develop fluency and understanding.