Step 1: Add (-1)/9 to both sides.<span><span><span><span><span><span>12</span>x</span>+<span><span>29</span>y</span></span>+<span>19</span></span>+<span><span>−1</span>9</span></span>=<span>1+<span><span>−1</span>9</span></span></span><span><span><span><span>12</span>x</span>+<span><span>29</span>y</span></span>=<span>89</span></span>Step 2: Add (-2)/9y to both sides.<span><span><span><span><span>12</span>x</span>+<span><span>29</span>y</span></span>+<span><span><span>−2</span>9</span>y</span></span>=<span><span>89</span>+<span><span><span>−2</span>9</span>y</span></span></span><span><span><span>12</span>x</span>=<span><span><span><span>−2</span>9</span>y</span>+<span>89</span></span></span>Step 3: Divide both sides by 1/2.<span><span><span><span>12</span>x</span><span>12</span></span>=<span><span><span><span><span>−2</span>9</span>y</span>+<span>89</span></span><span>12</span></span></span><span>x=<span><span><span><span>−4</span>9</span>y</span>+<span>169</span></span></span>Answer:<span>x=<span><span><span><span>−4</span>9</span>y</span>+<span>16<span>9</span></span></span></span>
