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07-04-2019
Mathematics

contestada

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

Respuesta :

07-04-2019

Answer:

[tex]\large\boxed{c.\ 7}[/tex]

Step-by-step explanation:

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

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