What is 2x+1=5x-14

$$\boxed{\begin{array}{lrcrcrr} (1) &5x & - & 14 &=& a &\\ (2)& 2x& + & 1 &=& a &\\ &--&-&--&-&--&\\ (1) - (2)& 3x&-&15&=&0 & \quad | \quad :3\\ &x&-&5&=&0 & \quad | \quad +5\\ &\textcolor[rgb]{1,0,0}{x}&&&\textcolor[rgb]{1,0,0}{=}&\textcolor[rgb]{1,0,0}{5} &\end{array}}$$