А) 1/8u-2=5/8+1/8u-2=5/8+1/8u = 5/8 + 1 + 1/8u = 7/u = 7
Б) x/8-x/4+x/2-x=x/8 - x/4 + x/2 - x = x/8 - 2x/8 + 4x/8 - 8x/8 = -3x/8 = x = -8/3
В) 5x/9-2x/3-x=5x/9 - 6x/9 - 9x/9 = -10x/9 = x = -3.6
Г) 3x/4-x=4x/5+3x/4 - x = 4x/5 + 3x - 4x = 16x/5 + 5x
Д) 6(x-1)+3(5-x)=6x - 6 + 15 - 3x = 3x + 9 = 3x = x = 0
Е) 4(3x-2)-4(x-2)=12x - 8 - 4x + 8 = 8x = x = 1/4
Ж) 5(6+x)-5(2x+7)=30 + 5x -10x - 35 = -5x - 5 = -5x = x = -1
А) 1/8u-2=5/8+
1/8u-2=5/8+
1/8u = 5/8 + 1 +
1/8u = 7/
u = 7
Б) x/8-x/4+x/2-x=
x/8 - x/4 + x/2 - x =
x/8 - 2x/8 + 4x/8 - 8x/8 =
-3x/8 =
x = -8/3
В) 5x/9-2x/3-x=
5x/9 - 6x/9 - 9x/9 =
-10x/9 =
x = -3.6
Г) 3x/4-x=4x/5+
x = 21x/3x/4 - x = 4x/5 +
3x - 4x = 16x/5 + 5x
-5x = 21
-5 = 2
This equation has no solution.
Д) 6(x-1)+3(5-x)=
6x - 6 + 15 - 3x =
3x + 9 =
3x =
x = 0
Е) 4(3x-2)-4(x-2)=
12x - 8 - 4x + 8 =
8x =
x = 1/4
Ж) 5(6+x)-5(2x+7)=
30 + 5x -10x - 35 =
-5x - 5 =
-5x =
x = -1