Question

[Phạm Thị Lan]

 2.(2x+3) + 3.(x-1) = 10 

( giải ra nhe ! )

Answer 1

[An Hoà]

2 ( 2x + 3 ) + 3 ( x - 1 ) = 10

4 x + 6     + 3 x - 3       = 10

4 x + 3 x                      = 10 + 3 - 6

7 x                               = 7

  x                                 = 1