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(6x - 1)/(x+1) = 2,3/1,2
1,2(6x-1) = 2,3(x+1)
7,2x - 1,2 = 2,3x + 2,3
4,9x = 3,5 /4,9
x = 3.5/4,9 = 35/49 = 5/7
b)
-x/(3x-1) = 2x/(1-6x)
-x + 6x² = 6x² - 2x
-x = -2x
x = 0
c)
2/3 = (3x+2)/(2x-2)
2*(2x-2) = 3(3x+2)
4x - 4 = 9x + 6
-10 = 5x /:5
x = -2