186 = 6 (3n + 7) answer for N

n = 8

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define Equation

186 = 6(3n + 7)

Step 2: Solve for n

Divide 6 on both sides:                    31 = 3n + 7Isolate n term:                                   24 = 3nIsolate n:                                            8 = nRewrite:                                             n = 8

Step 3: Check

Plug in n into the original equation to verify it's a solution.

Substitute in n:                    186 = 6(3(8) + 7)Multiply:                               186 = 6(24 + 7)Add:                                     186 = 6(31)Multiply:                               186 = 186

Here we see that 186 does indeed equal 186.

∴ n = 8 is the solution to the equation.

Cthe residual plot for model 1 has a non random pattern and is a good fit for the data