<span><span><span><span>2/7</span>k</span>−<span><span>1/14</span>k</span></span>=<span>−3</span></span>Step 1: Simplify both sides of the equation.<span><span><span><span>2/7</span>k</span>−<span><span>1/14</span>k</span></span>=<span>−3</span></span><span><span><span><span>2/7</span>k</span>+<span><span><span>−1/</span>14</span>k</span></span>=<span>−3</span></span><span><span>(<span><span><span>2/7</span>k</span>+<span><span><span>−1/</span>14</span>k</span></span>)</span>=<span>−3</span></span>(Combine Like Terms)<span><span><span>3/14</span>k</span>=<span>−3</span></span>Step 2: Multiply both sides by 14/3.<span><span><span>(<span>14/3</span>)</span>*<span>(<span><span>3/14</span>k</span>)</span></span>=<span><span>(<span>14/3</span>)</span>*<span>(<span>−3</span>)</span></span></span> Answer:<span>k=<span>−14</span></span><span> </span>
B-2.5mph You divide 10 (how far you went) by 4 (the amount of time it took you) which gives you 2.5 (the amount of time it takes you to walk 1 mile) To check: It takes you 2.5 hours to walk 1 mile so multipling 2.5 by 4 tells you how far you walked in 4 hours