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COMBINING LTKE TERMS

Ask by Little Matthews. in the United States
Feb 27,2025

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Answer

To simplify an expression, group like terms and add or subtract their coefficients. For example, in \(2x + 3 + 5x - 7\), combine \(2x + 5x = 7x\) and \(3 - 7 = -4\), resulting in \(7x - 4\).

Solution

It looks like you meant “combining like terms.” This is a fundamental step in simplifying algebraic expressions. Here’s a step-by-step guide: 1. Identify Like Terms:  • Like terms are terms that have the same variable(s) raised to the same power. For example, 3x and 5x are like terms, but 3x and 5x² are not.  • Constant numbers (with no variables) are also like terms with each other. 2. Group Like Terms:  • Write the expression so that like terms are next to each other. For example, consider the expression:    2x + 3 + 5x - 7    You can group it as (2x + 5x) + (3 - 7). 3. Combine the Coefficients:  • Add or subtract the numerical coefficients of like terms.   For the x-terms: 2x + 5x = 7x.   For the constants: 3 - 7 = -4.   So the simplified expression becomes 7x - 4. 4. Check Your Work:  • Make sure that only like terms have been combined and that the variable parts match exactly. Additional Example: Consider the expression:   4x² + 2x - 3x² + 8x + 5 - 7 Step 1: Group like terms.   (x² terms): 4x² - 3x²   (x terms): 2x + 8x   (constants): 5 - 7 Step 2: Combine each group.   x² terms: 4x² - 3x² = x²   x terms: 2x + 8x = 10x   Constants: 5 - 7 = -2 Final simplified expression:   x² + 10x - 2 Combining like terms simplifies expressions and makes solving equations more straightforward. If you have any more questions or need further clarification, feel free to ask!

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The Deep Dive

Combining like terms is a magical process that simplifies algebraic expressions, where terms with the same variables and exponents are grouped together. For example, in the expression 3x + 5x, you can combine the like terms to get 8x. This not only makes equations easier to solve but helps keep everything neat and tidy. It's like organizing your closet—everyone loves a well-ordered wardrobe! In the real world, simplifying expressions by combining like terms is useful in various fields such as finance, engineering, and data analysis. For instance, when managing budgets, you might combine costs or revenues with similar categories to get an overall picture of your finances. This helps in making informed decisions and tracking expenses efficiently—because no one wants to spend more time on math than they have to!

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