(9х-26,7)/4,7=13,14/14,6
9x-26.7=13.14:14.6*4.7 9x-26.7=0.9*4.7 9x-26.7=4.23 9x=4.23+26.7 9x=30.93 x=30.93:9 x=3093/900 x=1031/300 x=3 целых 131/300