X-5 /3 - x-7 /4 --------------------- =-3/4 x+5 /6 - x+7 /3

4(х-5)/12 - 3(х-7)/12 --------------------------- =-3/4 3(х+5)/18 - 6(х-7)/18 (4х-20-3х+21)/12 ------------------------- = -3/4 (3х+15- 6х+42)/18 х+1 /12 ------------- = -3/4 57-3х/18 х+1 /12 ----------------- = -3/4 -3(х+19)/18 х+1 /12 ------------- = -3/4 -(х+19)/6 х+1 /12=-3/4*(-(х+19)/6) х+1 /12=х+19 /4*2 х+1 /12=х+19 /8 8*(х+1) = 12*(х+19) 8х+8=12х+228 8-228=12х-8х 4х=-220 х=-55