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Lesson Example Discussion Quiz: Class Homework

Step-5

Title: Solve the linear equation for x

Grade: 9-a Lesson: S1-L3

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

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Solve the linear equation for x: \$ (x-5)/4 + (-x+4)/5 = -25/5 \$
2	Step	Taking LCM as 20	\$ (5(x-5) + 4(-x+4))/20 = -\cancel25^5/\cancel5^1\$
3	Step	After simplification we get	\$ (5x - 25 - 4x + 16)/20 = -5 \$
4	Step	After adding like terms together	\$ (x - 9)/20 = -5/1 \$
5	Step	By using cross multiplication we get	x - 9 = - 100
6	Step	Adding "+ 9" on both sides we get	\$ x - \cancel9 + \cancel9 = - 100 + 9 \$
7	Step	After cancellation we get	x = - 91
8		Answer	D

Step

Type

Explanation

Answer

Problem

Solve the linear equation for x:
\$ (x-5)/4 + (-x+4)/5 = -25/5 \$

Step

Taking LCM as 20

\$ (5(x-5) + 4(-x+4))/20 = -\cancel25^5/\cancel5^1\$

Step

After simplification we get

\$ (5x - 25 - 4x + 16)/20 = -5 \$

Step

After adding like terms together

\$ (x - 9)/20 = -5/1 \$

Step

By using cross multiplication we get

x - 9 = - 100

Step

Adding "+ 9" on both sides we get

\$ x - \cancel9 + \cancel9 = - 100 + 9 \$

Step

After cancellation we get

x = - 91

Answer

Tutor: Questions

Seq	Type	Question
1	Problem	What did you learn from this problem?
2	Clue	What did you learn from the clues?
3	Hint	What did you learn from the Hints?
4	Step	What did you learn from the Steps?
5	Step	How can we improve the Steps?

Seq

Type

Question

Audio

Problem

What did you learn from this problem?

Clue

What did you learn from the clues?

Hint

What did you learn from the Hints?

Step

What did you learn from the Steps?

Step

How can we improve the Steps?