Question 121683
17. Solve: 0.1p+2.1=4.6p-1.9+0.5p 

Arranging like terms on one side

          0.1p - 4.6p - 0.5p = -1.9 - 2.1
          -5p = -4
            p = -4/-5 = 4/5 = .8
            

18. Translate to an algebraic expression: Twenty less than some number. 

        Let the number be denoted by x
        algebraic expression can be written as x - 20


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