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Answered

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What is the solution to x + 9 = 21?
O A. x = 30
B. x = 18
O c. x = 12
O D. x= 9

Sagot :

Answer:

First we need to isolate x. To do this, we have to subtract 9

x = 12!

Step-by-step explanation:

beyouforyou923

Answer:

x=12

Step-by-step explanation:

x+9-9=21-9

x=12

hope this helps !!

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