Question
20−141−a711
Simplify the expression
−a121a+711
Evaluate
20−141−a711
Subtract the numbers
−121−a711
Reduce fractions to a common denominator
−a121a−a711
Write all numerators above the common denominator
a−121a−711
Solution
−a121a+711
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Find the excluded values
a=0
Evaluate
20−141−a711
Solution
a=0
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Find the roots
a=−121711
Alternative Form
a≈−5.876033
Evaluate
20−141−a711
To find the roots of the expression,set the expression equal to 0
20−141−a711=0
Find the domain
20−141−a711=0,a=0
Calculate
20−141−a711=0
Subtract the numbers
−121−a711=0
Subtract the terms
More Steps

Simplify
−121−a711
Reduce fractions to a common denominator
−a121a−a711
Write all numerators above the common denominator
a−121a−711
Use b−a=−ba=−ba to rewrite the fraction
−a121a+711
−a121a+711=0
Rewrite the expression
a−121a−711=0
Cross multiply
−121a−711=a×0
Simplify the equation
−121a−711=0
Move the constant to the right side
−121a=0+711
Removing 0 doesn't change the value,so remove it from the expression
−121a=711
Change the signs on both sides of the equation
121a=−711
Divide both sides
121121a=121−711
Divide the numbers
a=121−711
Use b−a=−ba=−ba to rewrite the fraction
a=−121711
Check if the solution is in the defined range
a=−121711,a=0
Solution
a=−121711
Alternative Form
a≈−5.876033
Show Solution
