Respuesta :

smg91

Step-by-step explanation:

first distribute the 5.

10x-40=90

then get rid of the 4o and add it to 90

10x=130

then divide by 10 to get x alone

x= 13

22stolc

Answer:

x = 13

Step-by-step explanation:

5(2x - 8) = 90       Divide by 5 on both sides

2x - 8 = 18            Add 8 to both sides

    + 8  + 8

2x = 26               Divide by 2 on both sides

x = 13