Respuesta :
Answer:
Answer is D: 9
Step-by-step explanation:
you would do 2x-6=12
Next: add 6 to both sides: 2X=18
Next: divide both sides by 2
Answer: X=9
Given that Benjamin's age is 6 years less than twice Lucas's age and Benjamin is 12 years old.
find Luca's age?
Let x and y represent Luca's age and Benjamin's age respectively.
Then, according to the given information, we have
y = 2x-6⇒1
y=12 ⇒2
Substituting the value of y from equation (2) in (1), we get
y=2x-6
⇒12=2x-6
⇒2x=12+6
⇒2x=18
⇒x=18/2
∴ x=9
Lucas's age is Option D. 9
Thus, the required age for Luca is 9 years.
To learn more about age, refer
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