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B - 9 = 21
linear equations

2 Answers

3 votes

add 9 from 9 this will cancel out the nine then add 9 to 21 and what ever u get is ur answer b=30

Explanation:

b-9=21

+9

User Deejjaayy
by
8.5k points
7 votes

Answer: b=30

Step-by-step explanation: add 9 to both sides

b−9+9=21+9

b=30

User Sean Perry
by
8.5k points

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