-152-(3x+1)=(-2).(-27)
-152-3x-1=54
-3x-153=54
-3x=54+153
-3x=207
x=207:(-3)
x=-69
x^2-7x=0
x(x-7)=0
\(\left[ \begin{array}{l}x=0\\x-7=0\end{array} \right.\) (=)\(\left[ \begin{array}{l}x=0\\x=7\end{array} \right.\)
x^2.(x-7)=0
\(\left[ \begin{array}{l}x^2=0\\x-7=0\end{array} \right.\) (=)\(\left[ \begin{array}{l}x=0\\x=7\end{array} \right.\)