Firstly we are going to s<span>implify both sides of this equation so: </span><span>1−<span>z/5</span></span>=<span>9 </span>So lets simplify 1-z/5=9: <span>1+<span><span><span>−1/</span>5</span>z</span></span>=<span>9 </span><span><span><span><span>−1/</span>5</span>z</span>+1</span>=<span>9 </span>Second we are going to s<span>ubtract 1 from both of the sides so: </span><span><span><span><span><span>−1/</span>5</span>z</span>+1</span>−1</span>=<span>9−<span>1 </span></span><span><span><span>−1/</span>5</span>z</span>=<span>8 </span>Finally we are going to m<span>ultiply both of the sides by 5/(-1): </span><span><span>(<span>5/<span>−1</span></span>)</span>*<span>(<span><span><span>−1/</span>5</span>z</span>)</span></span>=<span><span>(<span>5/<span>−1</span></span>)</span>*<span>(8<span>) </span></span></span>And now your final answer shall be: z=<span>−<span>40 </span></span>I hope this helps!
