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2012年新GRE数学考点指导——Solve Equation of One Variable

2012-11-04 
Solve Equation of One Variable

  Solve Equation of One Variable

  To solve a linear equation isolate the variable, that is bring the variable to one side with arithmetic operations.

  Example: 

  To solve ax+b=c use the following steps:

  1.ax+b=c, subtract b from both sides

  2.ax=c-b, divide both sides by a

  3.x=(c-b)/a

  Remember:

  All linear equations of one variable can be written as ax+b=c and the solution is x=(c-b)/a.

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