Solve for n: n - 61 = -75.
An = 14
Bn = -14
Cn = -136
Dn = 136
Answer & Solution
Correct answer: B. n = -14
1. To isolate n, undo the subtraction of 61 by adding 61 to both sides.
2. This gives n = -75 + 61.
3. Combine: n = -14.
4. Check: -14 - 61 = -75, a true statement, while n = -136 comes from subtracting 61 instead of adding it.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 2 "Solving Linear Equations and Inequalities", section 2.1 Solve Equations Using the Subtraction and Addition Properties of Equality_
Related questions
Solve for x: 7 = (1/2)x + (3/4)x - (2/3)x.Classify the equation 12c + 5(5 + 3c) = 3(9c - 4) and state its solution.Solve for x: 2.8x + 12 = -1.4x - 9.Solve for q: 8q - 5 = -4q + 7.Solve for x: 3x + 4 = -8.A gardener planted 14 flats of flowers, filling 2/3 of a garden. How many flats would fillThe annual property tax on a house is $1,800, calculated as 15/1000 of the assessed value.Solve for r: 0.04r = 52.60.