Question

3.x+1/2=x-1como desenvolver está conta

Answer 1

 $3x+ \frac{1}{2}=x-1$.
\\$3x+ \frac{1}{2} - \frac{1}{2}= x-1-\frac{1}{2} \\ \\ 3x=x-\frac{3}{2} \\ \\3x-x=x-x-\frac{3}{2}; \\ \\2x=-\frac{3}{2} \\ \\x=-\frac{3}{\frac{2}{2}}; \\ \\x = - \frac{3}{4}$