Solve the proportion 9/3x-15 = 3/12

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asked Jun 13, 2024 58.4k views

1 Answer

Richard Toth · Answer 1 · 2024-06-19T23:05:57+0000

9/(3x-15) = 3/12

Cross-multiply:

9 * 12 = 3 * (3x-15)

Simplify:

108 = 9x - 45

Add 45 to both sides:

153 = 9x

Finally, divide both sides by 9:

x = 17

the solution for x is 17.

Solve the proportion 9/3x-15 = 3/12

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