Найдите корни уравнений: 2) 8x+11 2/11 = 15 4) 4x-19 3/5 = 23 6) ( 8 4/9 - x) : 20 = 7/40 8)44 : (x-9 3/4 ) = 1 9/13
2)8x+11 2/11= 15 8x=14 11/11-11 2/11 8x= 3 9/11 X=42/11. /8 X=42/11*1/8 X=21/11*1/4 X= 21/44
4X-19 3/5=23
4X= 42 3/5. /4
X= 213/5*1/4
X= 213/20
X= 10,65