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Step-4

Title: Determine the value of an expression

Grade: 8-a Lesson: S1-L8

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Determine the value of an expression when u = -8, v = -7, w = 6 2u - 3v + 4w
2	Step	Now substitute u,v,w values in the expression	2(-8) - 3(-7) + 4(6)
3	Step	After multiplication we get	-16 + 21 + 24
4	Step	After adding we get	-16 + 45
5	Step	After simplication	29
6		Answer	A

Step

Type

Explanation

Answer

Problem

Determine the value of an expression when u = -8, v = -7, w = 6
2u - 3v + 4w

Step

Now substitute u,v,w values in the expression

2(-8) - 3(-7) + 4(6)

Step

After multiplication we get

-16 + 21 + 24

Step

After adding we get

-16 + 45

Step

After simplication

Answer