1 year ago

Six times a number is decreased by 20 which is equal to three times the number increased by 4. what is the number?

1 answer:

8 0

Let the number be a
6a - 20 = 3a + 4
Group like terms
6a - 3a = 20 + 4
3a = 24
divide through by 3
a = 8
Therefore the number is 8

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I'm pretty sure you are asking for the value of b. Let's actually write it and then solve it:
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Solving for b yields:
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