Question

$2x + 9 = 30 - 9$
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Answer 1

2x + 9 = 30 -9

2x + 9 = 21

2x = 21- 9

2x = 12

x = 12/2 = 6

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Answer 2

Step-by-step explanation:

2x + 9 = 30-9

2x= 21 - 9

2x= 12

x =12/2

x= 6