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mel-nik [20]
3 years ago
6

If 3x-6=21, what is the value of x-2?A. 3B. 5c. 7D. 11​

Mathematics
1 answer:
Agata [3.3K]3 years ago
4 0

Answer:

\large\boxed{c.\ 7}

Step-by-step explanation:

3x-6=21\qquad\text{divide both sides by 3}\\\\\dfrac{3x}{3}-\dfrac{6}{3}=\dfrac{21}{3}\\\\x-2=7

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