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What is the value of a equation of a in the equation 5a - 10b = 45 when b = 3

User Damla
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2 Answers

6 votes
5a-10b = 45
b= 3
5a-30 = 45
5a=75
a= 15
User Ethan Long
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1 vote
15.

You'd get this by multiplying the -10 by 3 then adding it to both sides. Then divide by 5.
User Mjdsmith
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