Algebra

     Find all solutions x to the equation 5(2x + 1) + 5*2 = 5*x + 5(x + 3).     

                                  5(2x + 1) + 5*2  =  5*x + 5(x + 3)     

     multiply it out         10x + 5   + 10   =   5x  +  5x + 15     

     combine like terms          10x + 15  =  10x + 15     

     There isn't enough time left in the universe to write down all the solutions,     

     because there are infinite solutions to an equation that amounts to x = x.     

     Every x satisfies the given equation.     

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