guys I don't no the correct answer plz give the correct answer
21) Simplify (a-b) - (b - a) +( a + b )
A) 3a - b
B) 3a + 3b
C)3b+a
Answers
Answered by
1
Answer:
optionA
Step-by-step explanation:
a-b-b+a+a+b=3a-b
Answered by
20
Answer:
option a
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