Rewrite each expression using the distributive property and simplify, if possible. See Example 7. a + 7a
Table of contents
- 0. Review of College Algebra4h 45m
- 1. Measuring Angles40m
- 2. Trigonometric Functions on Right Triangles2h 5m
- 3. Unit Circle1h 19m
- 4. Graphing Trigonometric Functions1h 19m
- 5. Inverse Trigonometric Functions and Basic Trigonometric Equations1h 41m
- 6. Trigonometric Identities and More Equations2h 34m
- 7. Non-Right Triangles1h 38m
- 8. Vectors2h 25m
- 9. Polar Equations2h 5m
- 10. Parametric Equations1h 6m
- 11. Graphing Complex Numbers1h 7m
0. Review of College Algebra
Solving Linear Equations
Problem R.2.135
Textbook Question
Simplify each expression. See Example 8. -12y + 4y + 3y + 2y
Verified step by step guidance1
Identify the like terms in the expression: all terms contain the variable \(y\), so they can be combined.
Write the expression grouping the coefficients of \(y\): \(-12y + 4y + 3y + 2y\).
Add the coefficients together: calculate \(-12 + 4 + 3 + 2\).
Combine the sum of the coefficients with the variable \(y\) to form the simplified expression.
Write the final simplified expression as the product of the combined coefficient and \(y\).
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Combining Like Terms
Combining like terms involves adding or subtracting terms that have the same variable raised to the same power. In this expression, all terms contain the variable y, so their coefficients can be summed to simplify the expression.
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Coefficients in Algebraic Expressions
A coefficient is the numerical factor in a term of an algebraic expression. Understanding how to add and subtract coefficients correctly is essential for simplifying expressions involving variables.
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Simplification of Algebraic Expressions
Simplification means rewriting an expression in its simplest form by performing all possible operations. This process makes expressions easier to work with and understand, often by reducing the number of terms.
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