Question 9208
{{{x/4 + 3x/5 = 17}}}


Multiply both sides of the equation by the LCD, which is 20:


{{{ 20* (x/4)  + 20* (3x/5) = 20* 17}}}


{{{ 5x + 4*3x = 340 }}}
{{{5x + 12x = 340 }}}
{{{17x = 340}}}


Divide both sides by 17:
{{{x = 340/17 = 20}}}


Check:  {{{x/4 + 3x/5 = 17}}}
{{{20/4 + 60/5 = 17}}}
{{{5 + 12 = 17}}}


Nice Problem!  It's nice when things come out even.  Sometimes they actually do!!


R^2 at SCC