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-(3x-2)+(4x-1)=2(-4x+8)
- 3x + 2 + 4x - 1 = -8x + 16
-3x + 8x + 4x = 16 - 2 + 1
9x = 15 | 9
x = 1 6/9 <-- ułamek
2.
x+1/2 - x = 4 | *2
x + 1 - 2x = 8
-x = 7 | *(-1)
x = -7
3.
x/5 -2 = 4x + 1
x/5 - 4x = 3 | *5
x - 4x = 15
-3x = 15 | :(-3)
x = -5