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## Alex has some marbles. Billie has three times as many marbles are Alex. Chris has 9 fewer marbles than Billie. In total

Question

Alex has some marbles.

Billie has three times as many marbles are Alex.

Chris has 9 fewer marbles than Billie.

In total they have 68 marbles.

How many marbles does Alex have?

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Mathematics
6 months
2021-07-18T11:50:44+00:00
2021-07-18T11:50:44+00:00 1 Answers
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## Answers ( )

Answer:11 marbles

Step-by-step explanation:Let x = no. of marbles-Alex

3x = no. of marbles-Billie

3x – 9 = no. of marbles-Chris

x + 3x + 3x – 9 = 68

7x – 9 = 68

7x = 77

x = 11