2 years ago

Two sublings are 55 years combined and one sibling is 9 years younger how od is the younger sibing

Mathematics

2 answers:

horsena [70]2 years ago

8 0

X + X + 9 =55
2x = 55 - 9
X = 46/2
X = 23

Dennis_Churaev [7]2 years ago

6 0

Answer:

23 years old

Step-by-step explanation:

Let x = age of younger sibling.

Then, the age of the older sibling is x + 9.

x + x + 9 = 55

2x = 46

x = 23

Answer: 23 years old

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