Let's solve for x.<span><span><span><span>5k</span>x</span>+6</span>=<span><span>7k</span>x</span></span> Step 1: Add -7kx to both sides.<span><span><span><span><span>5k</span>x</span>+6</span>+<span>−<span><span>7k</span>x</span></span></span>=<span><span><span>7k</span>x</span>+<span>−<span><span>7k</span>x</span></span></span></span><span><span><span>−<span><span>2k</span>x</span></span>+6</span>=0</span> Step 2: Add -6 to both sides.<span><span><span><span>−<span><span>2k</span>x</span></span>+6</span>+<span>−6</span></span>=<span>0+<span>−6</span></span></span><span><span>−<span><span>2k</span>x</span></span>=<span>−6</span></span> Step 3: Divide both sides by -2k.<span><span><span><span><span>−<span><span>2k</span>x</span></span><span>−<span>2k</span></span></span></span></span>=<span><span><span><span>−6</span><span>−<span>2k</span></span></span></span></span></span><span>x=<span><span>3/<span>k</span></span></span></span>
