Question
Solve the equation
Solve for x
x=−6
Evaluate
−x−21x=9
Subtract the terms
More Steps

Evaluate
−x−21x
Collect like terms by calculating the sum or difference of their coefficients
(−1−21)x
Subtract the numbers
More Steps

Evaluate
−1−21
Reduce fractions to a common denominator
−22−21
Write all numerators above the common denominator
2−2−1
Subtract the numbers
2−3
Use b−a=−ba=−ba to rewrite the fraction
−23
−23x
−23x=9
Change the signs on both sides of the equation
23x=−9
Multiply by the reciprocal
23x×32=−9×32
Multiply
x=−9×32
Solution
More Steps

Evaluate
−9×32
Reduce the numbers
−3×2
Multiply the numbers
−6
x=−6
Show Solution
Rewrite the equation
Rewrite in standard form
x=−6
Evaluate
−x−21x=9
Evaluate
More Steps

Evaluate
−x−21x
Collect like terms by calculating the sum or difference of their coefficients
(−1−21)x
Subtract the numbers
More Steps

Evaluate
−1−21
Reduce fractions to a common denominator
−22−21
Write all numerators above the common denominator
2−2−1
Subtract the numbers
2−3
Use b−a=−ba=−ba to rewrite the fraction
−23
−23x
−23x=9
Multiply both sides of the equation by LCD
−3x=18
Multiply both sides
3x=−18
Solution
x=−6
Show Solution