Solve for x
x\leq 1
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3x\leq 15-12
Subtract 12 from both sides.
3x\leq 3
Subtract 12 from 15 to get 3.
x\leq \frac{3}{3}
Divide both sides by 3. Since 3 is positive, the inequality direction remains the same.
x\leq 1
Divide 3 by 3 to get 1.
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