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Sedbober [7]
3 years ago
12

Garrys H is one less than three times is Sister's age Girl ❤️ Gary's age is one less than three times is Sister‘s age Girl ❤️ Ga

ry is 11 years old how old is his sister
Mathematics
2 answers:
gogolik [260]3 years ago
8 0

Answer:

4 years old

Step-by-step explanation:

His sister is x years old.

Gary is 1 year less than 3 times her age, so his age is

3x - 1

His age is 11, so we can write an equation.

3x - 1 = 11

Add 1 to both sides.

3x = 12

Divide both sides by 3.

x = 4

Answer: She is 4 years old.

Reika [66]3 years ago
4 0

Answer:

4

Step-by-step explanation:

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