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Question

21b-32+7b-20b
 


Solution

Simplify combining like terms:

(a) 21b – 32 + 7b – 20b

Answer: 21b – 32 + 7b – 20b
= 21b + 7b – 20b – 32
= 28b – 20b – 32 = 8b – 32

Answer:

21b - 32 + 7b - 20b

= 21b + 7b - 20b -32

= 8b - 32.

Ans: 8b - 32.


Mathematics

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