Respuesta :

Answer:

x = 8

Step-by-step explanation:

first you have to subtract 15x from 40x which gives you 25x, then you have to add 120 to 80 which gives you 200, so 25x ÷ 200 = x = 8

Please mark as brainliest :)

Answer:

8

Step-by-step explanation:

40x-120=15x+80

      +120       +120

      =0           =200

40x=15x+200

-15x -15x

=25    =0

25x=200

200/8=8