3.4 Solving Multi-Step Equations

 $6\left(3-x\right)=-4\left(2x-1\right)\ \ \ \ \ x\ =\ ?\ \ \left(Only\ enter\ a\ number\right)$  

 $-6\left(x+1\right)=-7x+3\left(-x+3\right)\ \ List\ only\ the\ number\ as\ a\ decimal.$  

 $14\left(\frac{3}{7}x-\frac{1}{2}\right)=4+6\left(x-\frac{1}{2}\right)$  

• 0
  

• 7

• all real numbers
  

• no solution
  

 $\frac{2}{3}\left(x+1\right)=\frac{\left(-2-2x\right)}{-3}$  

• 0

• 1

• all real numbers
  

• no solution
  

After solving equations with variables on both sides, no solution occurs if which of the following is true?

•  $a\ =\ a\ \ \left(where\ a\ is\ a\ real\ number\right)$  

•  $a\ =\ b\ \left(where\ a\ and\ b\ are\ real\ numbers,\ and\ a\ne b\right)$