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Maths Exercices

Solve compound inequalities

To solve for a variable, use inverse operations to undo the operations in the inequality. Be sure to do the same operation to all parts of the inequality.


Solve for f.

-5 < f + 13 ≤ 5

-5 -13 < f + 13 -13 ≤ 5 -13

  Subtract 13 from each part of the inequality

-18 < f ≤ -8
  Simplify


Solve for l

-12 > l - 1 ≥ -18


-11 > l ≥ -17
-11 ≥ l ≥ -17
-11 ≥ l > -17
-11 > l > -17