Question

a )9-x+2=-5x+3+2x ?

b ) -x-2x-4+11 ?

c) 4(x+10)-2(x-5)=0

Answer 1

a) 9-x +2 =- 5x +3 +2x

   - x+5x-2x = 3 -2 -9

      2x = -8

        x =   - 8

             _______    x = -4

                   4  

   -x -2x -4 +11

    -3x -4+11 = 0

     -3x = 4 - 11

        -3x = - 7   *( -1 )

          3x = 7

            x =  7

               ____      

                  3

             4(x+10) - 2( x - 5 ) = 0

            4x +40 -2x +10 = 0

            4x -2x = -40 -10

             2x = -50

               x =  -   -50

                    ________

                            2

                 X=      -25