1 tablet weekly reduction in his consumption of tablets.
Algebraic expression is a set of variable, constant and algebraic operations like addition, subtraction, multiplication and division. for example 3x^2+2x+3=0
Tablet after 10 week of doctor visit = 40 tablet
Tablet after 20 week of doctor visit= 30
In 10 week there is a difference of (40-30) 10 tablets.
in 10 week there is reduction of 10 tablets its mean there is reduction of 1 tablet per week
so, the weekly reduction of 1 tablet per week.
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