<svg xmlns="http://www.w3.org/2000/svg" xmlns:wrs="http://www.wiris.com/xml/mathml-extension" height="41" width="165" wrs:baseline="26"><!--MathML: <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>3</mn><mo>-</mo><mfrac><mn>4</mn><mn>5</mn></mfrac><mi mathvariant="normal">&#xA0;</mi><mo>+</mo><mi mathvariant="normal">&#xA0;</mi><mi mathvariant="normal">x</mi><mo>-</mo><mfrac><mn>7</mn><mn>15</mn></mfrac><mi mathvariant="normal">&#xA0;</mi><mo>=</mo><mi mathvariant="normal">&#xA0;</mi><mfrac><mn>12</mn><mn>5</mn></mfrac></math>--><defs><style type="text/css">@font-face{font-family:'math14f338326459958a9aae793361b';src:url(data:font/truetype;charset=utf-8;base64,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)format('truetype');font-weight:normal;font-style:normal;}</style></defs><text font-family="Arial" font-size="16" text-anchor="middle" x="4.5" y="26">3</text><text font-family="math14f338326459958a9aae793361b" font-size="16" text-anchor="middle" x="16.5" y="26">&#x2212;</text><line stroke="#000000" stroke-linecap="square" stroke-width="1" x1="26.5" x2="38.5" y1="20.5" y2="20.5"/><text font-family="Arial" font-size="16" text-anchor="middle" x="32.5" y="15">4</text><text font-family="Arial" font-size="16" text-anchor="middle" x="32.5" y="37">5</text><text font-family="math14f338326459958a9aae793361b" font-size="16" text-anchor="middle" x="52.5" y="26">+</text><text font-family="Arial" font-size="16" text-anchor="middle" x="68.5" y="26">x</text><text font-family="math14f338326459958a9aae793361b" font-size="16" text-anchor="middle" x="79.5" y="26">&#x2212;</text><line stroke="#000000" stroke-linecap="square" stroke-width="1" x1="89.5" x2="110.5" y1="20.5" y2="20.5"/><text font-family="Arial" font-size="16" text-anchor="middle" x="100.5" y="15">7</text><text font-family="Arial" font-size="16" text-anchor="middle" x="100.5" y="37">15</text><text font-family="math14f338326459958a9aae793361b" font-size="16" text-anchor="middle" x="125.5" y="26">=</text><line stroke="#000000" stroke-linecap="square" stroke-width="1" x1="140.5" x2="161.5" y1="20.5" y2="20.5"/><text font-family="Arial" font-size="16" text-anchor="middle" x="151.5" y="15">12</text><text font-family="Arial" font-size="16" text-anchor="middle" x="151.5" y="37">5</text></svg>