8 x+ (x-8)× 6 =232
8x +6x-48=232
l4× =232+48
x=20
20x=6o(x-1)
20x=60×-60
6o =60×-2Ox
X=60: 40
x= l,5
lo(8x-3) -7 ( 3×+l)=2×70
8Ox -30 -21 × -7 =140
59x= 140+37
x= 177: 59
x=3
2(2×-3)+1(7×-13)+3(5-2 x) =6(x-1)
4x-6+7-x-13+15-6 x =6x-6
5× - 4=6 x-6
-x=-2
x=2
2(x^2-3×-1) -1(2 x^2 +3x -5) = 3
2X^2 - 6x -2-2x^'2-3x+5=3
- 9x=3-5+2
-9 x=0
X=0