Simplifying the Expression: (9x+7)-(x+3)
This article will guide you through the process of simplifying the expression (9x+7)-(x+3). This is a fundamental algebraic operation that involves combining like terms.
Understanding the Problem
The expression (9x+7)-(x+3) represents a subtraction of two binomials:
- (9x+7): This binomial contains the terms 9x and 7.
- (x+3): This binomial contains the terms x and 3.
Simplifying the Expression
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Distribute the negative sign: The minus sign in front of the second binomial acts as a -1. We distribute this -1 to both terms inside the parentheses: (9x + 7) -1(x + 3)
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Simplify: Now we multiply each term inside the second parentheses by -1: 9x + 7 -x - 3
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Combine like terms: Identify and combine terms with the same variable (x) and terms without variables (constants): (9x - x) + (7 - 3)
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Simplify further: Perform the arithmetic operations: 8x + 4
Final Result
Therefore, the simplified expression for (9x+7)-(x+3) is 8x + 4.