Ineed with number 14. i need to divide it using long division. .

59°

Step-by-step explanation:

Use the equation:

( 6x - 1 )° + ( 5x + 14 )° = 123°

Combine like terms

6x + 5x = 11x         -1 + 14 = 13

New simplified equation:

11x + 13 = 123

Subtract 13 from both sides of the equation

11x + 13 = 123

       -13    -13

We are subtracting because the opposite of addition is subtraction and we are using PEMDAS backwards to isolate the variable 'x' on one side of the equation.

Equation now:

11x = 110

Divide both sides of the equation by 11

=

Solve

x = 10

Solve for the measure of angle H

Plug in the variable

6(10) - 1

60 - 1 = 59

measure of angle H is 59°