Asked by La´Rue

12x−39≤9 AND−4x+3<−6
Answered by oobleck
multiply the 2nd by -3 and you have
12x - 9 > 18
12x > 27
So now you have a compound inequality
27 < 12x <= 48
9/4 < x <= 4

or, you can solve the two inequalities separately.
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