Why This Matters for Nursing: "If a patient needs 250 mg and each tablet is 125 mg, how many tablets?" This is solving an equation: 125x = 250. Basic algebra helps you solve real medication problems.
An equation has an equals sign (=) showing two expressions are equal.
Solving means finding the value of the variable that makes the equation true.
Whatever you do to one side, you MUST do to the other side.
Think of a balanced scale—to keep it balanced, add/remove the same from both sides.
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