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½x - 3 +1 = ¾x + 4 ½ - 5
½x - 2 = ¾x - ½
½x - ¾ x = -½ + 2
- ¼x = 1½ //:(-¼)
x = ³₂ * (- 4)
x = - 6
b ) 1,5 ( y+2) +2y-5/2 ( 2y+1) -5
1½y + 3 + 2y - 5y + ⁵₂ - 5 = -1½y + ½