Ayudaa No Entiendooo?

Como no le vas a entender si no lo intentas : (<img src="https://tex.z-dn.net/?f=b%29%205x-3%3D8-x%5C%5C5x-3%2B3%3D8-x%2B3%5C%5C5x%3D11-x%5C%5C5x%2Bx%3D11-x%2Bx%5C%5C6x%3D11%5C%5Cx%3D%5Cfrac%7B11%7D%7B6%7D" /><img src="https://tex.z-dn.net/?f=c%29%20%5Cfrac%7B7m%7D%7B3%7D%20-2%3D9-%5Cfrac%7B2m%7D%7B5%7D%20%5C%5C3%20%28%5Cfrac%7B7m%7D%7B3%7D%20-2%29%3D%289-%5Cfrac%7B2m%7D%7B5%7D%293%5C%5C7m-6%3D27-%5Cfrac%7B6m%7D%7B5%7D%20%5C%5C%287m-6%295%3D%2827-%5Cfrac%7B6m%7D%7B5%7D%20%295%5C%5C35m-30%3D135-6m%5C%5C35m-30%2B6m%3D135-6m%2B6m%5C%5C35m-30%2B6m%3D135%5C%5C41m-30%3D135%5C%5C41m-30%2B30%3D135%2B30%5C%5C41m%3D165%5C%5Cm%3D%5Cfrac%7B165%7D%7B41%7D" />Al menos intenta la ultima : v.