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Lissette's age is 3 years less than twice the age of her sister Francesca. Lissette is 13. Write an equation that can be used to find Francesca's age, f. Explain how to find the answer. Justify each step in the equation. How old is Francesca?

Respuesta :

randgh
 let  L be Lissette's age

and F   Francesca age 

2 F - 3 = 13 

2F= 16  

F = 16/2 =8

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