Question

a). 7x-6 = 5x+4               b) 3x-5 = 7x+9

Answer 1

a: =>7x-5x=4+6

=>2x=10

hay x=5

b: =>3x-7x=9+5

=>-4x=14

hay x=-7/2

Answer 2

a). 7x-6 = 5x+4 

=> 7x - 5x = 4 + 6

=> 2x = 10

=> x = 5     

 b) 3x-5 = 7x+9

=> 3x - 7x = 9 + 5

=> -4x = 14

=> x = -7/2

 

Answer 3

a) x=5

b) x= -7/2

Answer 4

a: =>7x-5x=4+6

=>2x=10

hay x=5

b: =>3x-7x=9+5

=>-4x=14

hay x=-7/2

Answer 5

a) 7x - 6 = 5x + 4

    7x - 5x= 4 + 6

        2x   = 10

        x     = 5

b) 3x - 5 = 7x + 9

    3x - 7x= 9 + 5

          -4x=14

            x = -7/2