Solve for n 21=(n(-1))/2

Math
21=n(-1)2
Rewrite the equation as n(-1)2=21.
n(-1)2=21
Multiply both sides of the equation by 2-1.
2-1⋅n(-1)2=2-1⋅21
Simplify both sides of the equation.
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Simplify 2-1⋅n(-1)2.
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Cancel the common factor of 2.
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Cancel the common factor.
2-1⋅n⋅-12=2-1⋅21
Rewrite the expression.
1-1⋅(n⋅-1)=2-1⋅21
1-1⋅(n⋅-1)=2-1⋅21
Combine n and 1-1.
n-1⋅-1=2-1⋅21
Combine n-1 and -1.
n⋅-1-1=2-1⋅21
Simplify the expression.
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Move the negative one from the denominator of n⋅-1-1.
-1⋅(n⋅-1)=2-1⋅21
Rewrite -1⋅(n⋅-1) as -(n⋅-1).
-(n⋅-1)=2-1⋅21
Move -1 to the left of n.
-(-1⋅n)=2-1⋅21
Rewrite -1n as -n.
–n=2-1⋅21
–n=2-1⋅21
Multiply –n.
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Multiply -1 by -1.
1n=2-1⋅21
Multiply n by 1.
n=2-1⋅21
n=2-1⋅21
n=2-1⋅21
Simplify 2-1⋅21.
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Divide 2 by -1.
n=-2⋅21
Multiply -2 by 21.
n=-42
n=-42
n=-42
Solve for n 21=(n(-1))/2

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