Answer:
x is -12
Step-by-step explanation:
[tex]\rightarrow \frac{-1}{4}x-12-x=x+3-x\\\\\rightarrow \frac{-1}{4}\cdot x-x-12=x+3-x\\\\\rightarrow \frac{-1}{4}+\frac{-4}{4}x-12=x+3-x\\\\\rightarrow \frac{-1-4}{4}\cdot x-12=x+3-x\\\\\rightarrow \frac{-5}{4}\cdot x-12=x+3-x\\\\\rightarrow \frac{-5}{4}\cdot x-12=x-x+3\\\\\frac{-5}{4}\cdot x-12=3[/tex]
Step 2
[tex]\rightarrow \frac{-5}{4}\cdot x-12=3\\\\\rightarrow \frac{-5}{4}x-12+12=3+12\\\\\rightarrow \frac{-5}{4}\cdot x=3+12\\\\ \frac{-5}{4}\cdot x=15[/tex]
Step 3
[tex]\rightarrow \frac{-5}{4}\cdot x=15\\\\\rightarrow \frac{-5}{4}x\cdot \frac{4}{-5}=15\cdot \frac{4}{-5}\\\\\rightarrow \frac{-5}{4}\cdot x\cdot \frac{-4}{5}=15\cdot \frac{4}{-5}\\\\\rightarrow \frac{-5}{4}\cdot \frac{-4}{5}x=15\cdot \frac{4}{-5}\\\\\rightarrow 1x=15\cdot \frac{4}{-5}\\\\\rightarrow x=15\cdot \frac{4}{-5}\\\\\rightarrow x=15\cdot \frac{-4}{5}\\\\\rightarrow x=\frac{15\cdot -4}{5}\\\\x=-12[/tex]
