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

User Dan Moldovan
by
6.7k points

2 Answers

3 votes

Answer:

a=15

Explanation:

User Beyowulf
by
7.0k points
2 votes
3a + b = 54
Substitute b for 9
3a + 9 = 54
Subtract 9 to both sides
3a = 45
Divide 3 to both sides
a = 15
User Wblaschko
by
6.5k points
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