alleryStart learning →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_
Keep practising Solving Linear Equations and Inequalities
Browse all Solving Linear Equations and Inequalities questions for NY Regents Algebra I, or explore more Mathematics topics.
Related questions
Spot the broken stepOrder the equation-solving stepsSolve: -5 = (1/4)(8x + 4).Solve: a + 3/4 = (3/8)a - 1/2.Solve: 6 = (1/2)v + (2/5)v - (3/4)v.Solve: (1/6)y - 1/3 = 5/6.Classify the equation 5m + 3(9 + 3m) = 2(7m - 11), then state the solution.Classify the equation 10 + 4(p - 5) = 0, then state the solution.