<span><span><span>5x</span>+45</span>=1605</span>Subtract 45 from both sides.<span><span><span><span>5x</span>+45</span>−45</span>=<span>1605−45</span></span><span><span>5x</span>=1560</span>Divide both sides by 5.<span><span><span>5x</span>5</span>=<span>15605</span></span><span>x=<span>312