So to start off here is the question being asked: <span>81+<span>7x</span></span>=<span>81 </span>The first thing we are going to do is s<span>implify both sides of the equation: </span><span><span>7x</span>+81</span>=<span>81 </span>Second thing to do is s<span>ubtract 81 from both sides so: </span><span><span><span>7x</span>+81</span>−81</span>=<span>81−<span>81 </span></span>The final thing to do is d<span>ivide both sides by 7: </span><span><span>7x/</span>7</span>=<span>0/<span>7 The final answer is: x=0 I hope this helps! :)</span></span>