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23 votes
X+12=21 show your work

2 Answers

8 votes

x+12=21

Step 1: Subtract 12 from both sides.

x+12−12=21−12

x=9

User Magd Kudama
by
7.3k points
11 votes

Answer:

x=9

Explanation:

x+12=21

x=21-12

x=9

User Protob
by
8.9k points