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18x + 3 squared is 81 what is x?

User Tobiasg
by
7.9k points

1 Answer

2 votes

Answer:

x=1/3

Explanation:

(18x+3)^2=81

square root both sides

18x+3=9

subtract 3 from both sides

18x=6

divide 18 on both sides

x=1/3

User Arsalan Ahmed
by
8.2k points

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