Decide whether the given number is a solution of the given equation.
-x - 1 = 8; -3
A)solution
B)not a solution

Question

Quizplus · Accepted Answer

To check whether -3 is a solution or not, substitute -3 into the equation for x: 
-3 - 1 = 8
This simplifies to -4 = 8, which is not true. Therefore, -3 is not a solution of the equation and the best choice is B. To check if -3 is a solution, we substitute it into the equation:
x - 1 = 8
-3 - 1 = 8
-4 = 8
This is not true, so -3 is not a solution.

Decide Whether the Given Number Is a Solution of the Given