Question

-12|9x + 1|=144

Answer 1

As the one before, we check the 2 possible solutions,
\[If\ x<-1/9\Rightarrow -12(-9x-1)=144\Rightarrow x=11/9\]
\[If\ x>-1/9\Rightarrow -12(9x+1)=144\Rightarrow x=-13/9\]
However, the solutions cannot satisfy the original equation, so this equation has nos solutions (this is because the 12 has a minus sign).

Answer 2

As I said, a minus numbre times a positive number cannot give a positive number. So there are no solutions.