lián​lì​fāng​chéng​shì

simultaneous equations

  1. 联 聯 lián nounverb
    to connect
    (bound form) to connect or continue without interruption; to succeed one another
  2. 立 lì verb
    to establish
    to establish; to set up; to found; to achieve or build up, such as a reputation or career
  3. equation
    a mathematical statement that two expressions are equal, usually containing one or more unknown values; chemical equation or formula