SOLUTION: Explain why -2 is not the solution of the equation 4x + 3x -5 = 27.

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Question 14235: Explain why -2 is not the solution of the equation 4x + 3x -5 = 27.
Answer by rahman(247) About Me  (Show Source):
You can put this solution on YOUR website!
4x + 3x -5 = 27
The solution of the equation is a number that why if you substitute it to equation you got true statement.
Let's do. Substitute -2 to 4x + 3x -5 = 27.
4x + 3x -5 = 27
4(-2)+3(-2)-5=27
-8+(-6)-5=27
-19=27 (is it true statement? of course it's false). Thus, -2 is not the solution of this equation.
OK