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avanturin [10]
3 years ago
5

Solve or check ' whether your answer is correct or not 3x -9=12​

Mathematics
2 answers:
Gnoma [55]3 years ago
7 0
X = 7..................
Kruka [31]3 years ago
5 0

Answer:

x = 7

Step-by-step explanation:

3x - 9 = 12

3x = 12 + 9

3x = 21

x = 21 ÷ 3

x = 7

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