<math xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mrow><mo>-</mo><mrow><mn>8</mn><mo>⁢</mo><mi>y</mi></mrow></mrow><mo>=</mo><mrow><mn>7</mn><mo>⁢</mo><mi>x</mi></mrow></mrow></math>
Mathbot Says...
I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.