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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

MEAP Preparation - Grade 7 Mathematics
2.66 Simplification of Expressions - II

Example: (7x+9y) + (9x+7y) - (9x+9y) = _____ ?
Solution:
The expression is, 7x + 9y + 9x + 7y - 9x - 9y
Write the like-terms together,
7x + 9x - 9x + 9y + 7y - 9y = 18x - 9x + 7y - 18y
= 7x + 7y
Directions: Simplify the following expressions. Also write at least 10 examples of your own.
Q 1: (6x-9y) - (7x-9y) + (6x+7y) = _____ ?
-6x-23y
6x-23y
5x+7y
-5x-7y

Q 2: (8x+9y) - (9x+7y) + (6x+7y) = _____ ?
5x+9y
-5x+9y
3x+10y
5x-9y

Q 3: (7x-8y) - (9x-9y) + (6x+7y) = _____ ?
-4x+8y
4x-8y
3x+10y
4x+8y

Q 4: (9x-6y) - (6x-9y) + (7y-6x) = _____ ?
3x+10y
14x-7y
-3x+10y
3x-10y

Q 5: (7x-9y) - (9x+7y) + (7x+9y) = _____ ?
5x-7y
3x+7y
3x+10y
-5x+7y

Q 6: (15x-7y) - (7x-9y) + (8x+7y) = _____ ?
3x+10y
14x+9y
16x+9y
4x+10y

Q 7: (8x-9y) - (9x-17y) + (7x+15y) = _____ ?
6x+23y
-4x+8y
6x-23y
-6x-23y

Q 8: (7x+6y) + (9x-7y) - (9x+8y) = _____ ?
7x+9y
14x-7y
7x-9y
-7x+9y

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Question 10: This question is available to subscribers only!


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