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12 * (3-3x) = 15 - 4* (4x - 3)
36 - 36x = 15 - 16x + 12
-36x + 16x = 27 - 36
-20x = - 11/: (-20)
x = 11/20
E) 2x - 11/4 + 19 - 2x /2 = 2x/* 4
2x - 11 + 2 * (19 - 2x) = 8x
2x - 11 + 38 - 4x =8x
- 2x - 8x = - 27
-10x = -27 /: (-10)
x= 27/10
x = 2 i 2/10