Use inverse matrices to find the solution of the system of equations. 
Definitions:
Reagent Urine Strip
A diagnostic tool used to detect and measure various substances in urine through a chemical reaction indicator.
Pregnancy
The period during which a woman carries a developing fetus, usually lasting around 40 weeks from the last menstrual period to childbirth.
Bacterial Infection
An invasion of the body by harmful bacteria that can cause diseases and trigger an immune response.
Urinary Tract
The system in the body responsible for the removal of waste and excess water through urine; it includes the kidneys, ureters, bladder, and urethra.
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