Question 47341
First expand the equation thusly {{{x+4*x+4*3=17}}}.  That equates to {{{x+4x+12=17}}}.  Combining like terms produces {{{5x+12=17}}}.  Now subtract 12 from both sides:  {{{5x+12-12=17-12}}}, or {{{5x=5}}}.  Dividing both sides by 5 produces {{{5x/5=5/5}}} which simplifies to {{{x=1}}}.