2 years ago

Select the correct answer.

Mathematics

2 answers:

arlik [135]2 years ago

6 0

Option B is correct

Why

3x=21

3(7) =21

21=21

Step-by-step explanation:

kolbaska11 [484]2 years ago

5 0

Answer:

$-3x=21 , -7$

Step-by-step explanation:

$-3x=21\\x=\frac{21}{-3} =-7$

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