Solve for x
x>-180
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-15\times 12<x
Multiply both sides by 12. Since 12 is positive, the inequality direction remains the same.
-180<x
Multiply -15 and 12 to get -180.
x>-180
Swap sides so that all variable terms are on the left hand side. This changes the sign direction.
Examples
Quadratic equation
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Matrix
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