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Addition and Subtraction Patterns

Question 1 iv...

Question

Question 1 (iv)

Simplify combining like terms:

3a - 2b - ab - (a - b + ab) + 3ab + b - a

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Solution

3a - 2b - ab - (a - b + ab) + 3ab + b - a = 3a - 2b - ab - a + b - ab + 3ab + b - a
= 3a - a - a - 2b + b + b - ab - ab + 3ab
= (3a - a - a) - (2b - b - b) - (ab + ab - 3ab)
= a - 0 - (-ab)
=a + ab

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Q. Simplify combining like terms:

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Question 1 (i)

Simplify combining like terms:

21b - 32 + 7b - 20b

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Addition and Subtraction Patterns

Standard VI Mathematics

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