|2x-3|=5
x^10: x^7 =64
(26-3x):5= 71
5x+ 10+ 3x=90
10x+7- 5x+3= 60
|2x-3|=5
=> 2x-3 = [tex]\pm[/tex]5
TH1: 2x-3 = 5
=> 2x = 8
=> x =4
TH2: 2x-3 = -5
=> 2x = -2
=> x =-1
x^10: x^7 =64
=> x^3 = 64
=> x= 4
(26-3x):5= 71
=> 26-3x = 355
=> 3x = -329
=> x = [tex]\frac{-329}{3}[/tex]
5x+ 10+ 3x=90
=> 8x = 80
=> x = 10
10x+7- 5x+3= 60
=> 5x = 60 - 10
=> 5x = 50
=> x = 10