The sum of atb-1, ba+1, 1-2b
Answers
Answered by
4
Step-by-step explanation:
ab-1+ba+1+1-2b
2ab+1-2b
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Answered by
0
Answer:
2ab-1+2b
Step-by-step explanation:
step 1
ab-1+2b+1+1-2b
step 2
ab-1+2b+2b
step 3
the answer is 2ab-1+2b
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