Add the following a) 20a+b-c, a-2b+c and a+b-20c
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Answer:a) 22a-20c
Step-by-step explanation:
a) 20a+b-c, a-2b+c and a+b-20c
= 20a+b-c+a-2b+c+a+b-20c
=22a+2b-2b-20c
=22a-20c
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1
Answer:
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