помогите
3 7/6x-9/7x+4/63x=
4 9/2y+3 5/1y-2y=

3 7/6x-9/7x+4/63x= 3 147/126х-162/126х+8/126х=371/126х=2 119/126х4 9/2y+3 5/1y-2y=4 9/2у+3 10/2у-2у=17/2у+16/2у-2у=16 1/2у-2у=14 1/2у