if 5 times a number is decreased by 12, the difference is 9.

If 5 times a number is decreased by 12, the difference is 9.
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if 5 times a number is decreased by 12, the difference is 9.

If you mean x - (5x -12) = 9, then

x - 5x + 12 = 9
-4x = -3
x = 3/4

If you mean (5x -12) - x = 9, then
I leave it to you to figure out what x is (it is NOT 3/4)

Please be careful when specifying the problem.
by Level 11 User (78.4k points)

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