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25-09-2017
Mathematics

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What is the value of a in the equation 3a + b = 54, when b = 9?

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choixongdong choixongdong

25-09-2017

3a + b = 54, when b = 9, the
3a + 9 = 54
3a = 54 -9
3a = 45
a = 15

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