Evaluate the Expression 5x-6 When x Equals -3: Step-by-Step Solution

What will be the result of this algebraic expression:

5x−6 5x-6

if we place

x=−3 x=-3

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:06 Let's get ready to solve this problem.
00:10 First, we replace each variable with the correct number from the data.
00:17 Remember, a positive number times a negative number gives a negative result.
00:22 Great job! Let's keep calculating.
00:25 And there you have it, that's the solution!

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

What will be the result of this algebraic expression:

5x−6 5x-6

if we place

x=−3 x=-3

2

Step-by-step solution

The first step is to substitute X in the exercise, resulting in:

5(−3)−6 5(-3)-6

When we have two numbers with different signs, meaning one number is negative and the other is positive or vice versa,

the result of multiplication or division will always be negative.

5×−3=−15 5\times-3=-15

−15−6=−21 -15-6=-21

3

Final Answer

−21 -21

Practice Quiz

Test your knowledge with interactive questions

What will be the result of this algebraic expression:

\( 5x-6 \)

if we place

\( x=8 \)

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