So, this is how we do it O w O<span><span>x = <span>−1</span></span>;<span>y = <span><span>3x</span>+1</span></span></span>Step: Solve <span>x = <span>−1 </span></span>for x:Step: Substitute <span>−1 </span>for x in <span><span>y = <span><span>3x</span>+1</span></span>:</span><span>y = <span><span>3x</span>+1</span></span><span>y = <span><span><span>(3)</span><span>(<span>−1</span>)</span></span>+1</span></span><span>y = <span>−2</span></span>(Simplify both sides of the equation)Answer:<span><span>x=<span>−<span><span>1<span> and </span></span>y</span></span></span>=<span>−<span>2 Hope I helped! :3</span></span></span>