2 years ago

3 plus 6 times the number of white marbles for a total of 15

1 answer:

5 0

The problem is 3+6x = 15 with x being the number of white numbers.
Isolate variable by subtracting 3 on both sides: 6x = 12.
Isolate variable by dividing 6 on both sides: x = 2
The number of white marbles is 2.

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