Решите уравнение )=-8 -215,8+(-х)=76,2 -5 7/)=-3 1/4 заранее ! распишите все

8/14=4/7, 7/63=1/9, 30/84=5/14, 34*12/3*7=34*4/7=136/7=19 3/7
3/7+5/14=6/14+5/14=11/14, 8/9-7/12=32/36-21/36=11/36, 11/50-3/25+1/20=11/50-6/50+1/20=5/50+1/20=1/10+1/20=2/20+1/20=3/20,

11/12-y=11/24 y=11/12-11/24 y=22/24-11/24=11/24, 5,86m+1,4m=76,23 6m=76,23 m=12,705