Решить уравнения :

а) 2x + 5 = 4(x+1) + 11
б) 6x = 1 - (4-5x)
в) 15(x+2) - 30 = 12x
г) 6( x-1) = 9,4 = 1,7x
д) 0,15(x-4) = 9,9 - 0,3 (x-1)
е) 3,8x - (1,6 - 4,2x ) = 9,6 + (3,7 - 5x)
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