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3 years ago

7

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

1 answer:

insens350 [35]3 years ago

3 0

3a+9=54

3a+9-9=54-9

3a= 45

a=15

Check answer:

3(15)+9=54

54=54

Answer is a=15

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