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Chapter 6: Problem 3

Evaluate the algebraic expression for the given value or values of the variables. \(-7 x-5 ; \quad x=-4\)

Short Answer

Expert verified
The value of the algebraic expression \(-7x - 5\) when \(x = -4\) is \(23\).

Step by step solution

01

Substitute the value of the variable

Replace \(x\) in the expression \(-7x - 5\) with the given value which is \(-4\). After substitution, the expression becomes \(-7(-4) - 5\).
02

Perform the multiplication

Perform the multiplication operation \(-7 * -4\) in the expression. As the sign of both numbers is negative, the result is positive, therefore, the expression becomes \(28 - 5\).
03

Perform the subtraction

Perform the subtraction operation \(28 - 5\). The result is \(23\).

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