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Step-5

Title: Sum of two expressions

Grade: 6-a Lesson: S3-L5

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

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Find the sum	(7 x - 6 y) + (-5 x - 9 y)
2	Formula:	After eleminating the brackets we get	7 x - 6 y - 5 x - 9 y
3	Step	Grouping like terms together	(7 x - 5 x) + (-6 y - 9 y)
4	Step	After adding we get	2 x - 15 y
5		Answer	D

Step

Type

Explanation

Answer

Problem

Find the sum

(7 x - 6 y) + (-5 x - 9 y)

Formula:

After eleminating the brackets we get

7 x - 6 y - 5 x - 9 y

Step

Grouping like terms together

(7 x - 5 x) + (-6 y - 9 y)

Step

After adding we get

2 x - 15 y

Answer