Home › NY Regents Algebra I › Mathematics › Solving Linear Equations and Inequalities › Solve: -n = 9.
Solve: -n = 9.
An = 9
Bn = -18
Cn = 18
Dn = -9
Answer & Solution
Correct answer: D. n = -9
1. Rewrite -n as -1 times n.
2. Divide both sides by -1 to isolate n.
3. Simplify: n equals -9.
4. Check: the opposite of -9 is 9, matching the original equation.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 2 "Solving Linear Equations and Inequalities", section 2.2 Solve Equations using the Division and Multiplication Properties of Equality_
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