Q. Evaluate the expression for r=5.2.Write your answer in simplest form.−r+2r−3=__
Substitute r=5.2: Substitute r=5.2 into the expression −r+2r−3.Calculation: −5.2+25.2−3
Evaluate numerator: Evaluate the numerator 5.2−3.Calculation: 5.2−3=2.2
Evaluate denominator: Evaluate the denominator −5.2+2.Calculation: −5.2+2=−3.2
Write fraction: Write the fraction with the evaluated numerator and denominator.Calculation: −3.22.2
Simplify fraction: Simplify the fraction by dividing both the numerator and the denominator by their greatest common divisor.Calculation: −3.22.2=−1611
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