Irene R. answered 11/22/19
BS in Mechanical Engineering and Certified math teacher for 13 years
"Thirteen more than" means to add 13. Therefore, we can write the following equation to represent the sentence:
13 + p = -9
To solve, start on the side of the equation that contains the variable and subtract 13 from both sides of the equation:
13 + p - 13 = -9 -13
Then p = -22
You can verify your solution by substituting -22 in the original equation and see if the result is correct:
13 + p = -9
13 + -22 = -9 So you solution is correct.