<span><span>4<span>(<span><span>5x </span>− 20</span>)</span></span>=<span>−20</span></span><span>Step 1: Simplify</span><span><span><span><span>(4)</span><span>(<span>5x</span>)</span></span>+<span><span>(4)</span><span>(<span>−20</span>)</span></span></span>=<span>−20</span></span><span><span><span><span>20x</span>+</span>−80</span>=<span>−20</span></span><span><span><span>20x</span>−80</span>=<span>−20</span></span>Step 2: Add 80 to both sides.<span><span><span><span>20x</span>−80</span>+80</span>=<span><span>−20</span>+80</span></span><span><span>20x</span>=60</span>Step 3: Divide both sides by 20.<span><span><span>20x/</span>20</span>=<span>60/20</span></span><span>x=3</span>Answer:<span>x=<span>3
