9 squared plus a number equals 110? Algebra Linear Equations One-Step Equations and Inverse Operations 1 Answer Grace U. · Stefan V. Feb 20, 2018 Answer: The unknown number is #29#. Explanation: First, you find out what #9# squared equals, which is #81#. Then, you would subtract #81# from #110# and it would give you #29#. #9^2+n=110# #81+n= 110# #n=-81+110# #n=29# Hope this helps! Related questions What are One-Step Equations? How do you check solutions when solving one step equations? How do you solve one step equations involving addition and subtraction? How do inverse operations help solve equations? What are some examples of inverse operations? How do you solve for x in #x + 11 = 7#? How do you solve for x in #7x = 21#? How do you solve for x in # x - \frac{5}{6} = \frac{3}{8}#? How do you solve for f in #\frac{7f}{11} = \frac{7}{11}#? How do you solve for y in #\frac{3}{4} = - \frac{1}{2} \cdot y#? See all questions in One-Step Equations and Inverse Operations Impact of this question 228 views around the world You can reuse this answer Creative Commons License