(25,000+4x)/5=<span>18,600 </span><span>25,000+<span>4x</span></span>=<span>93,000 (multiply both sides by 5) </span><span>4x</span>=<span>68,000 (subtract 25,000 from both sides) </span>x=<span>17,000 (divide both sides by 4) </span>Fitters make $17,000 a year