3/7+4/8+2/7+10/8

0,5х+14-3,3х=4,7х-28

1/75+11/25-3/50+4/25
Полное решение прошу 1 и 3 ДРОБИ

3/7 + 4/8 + 2/7 + 10/8 = (3/7 + 2/7) + (4/8 + 10/8) = 5/7 + 14/8 = 5/7 + 1 6/8 = 5/7 + 1 3/4 = 20/28 + 1 21/28 = 1 41/28 = 2 13/28.0,5х + 14 - 3,3х = 4,7х - 28- 2,8х + 14 = 4,7х - 2814 + 28 = 4,7х + 2,8х42 = 7,5хх = 42 : 7,5х = 5,6.1/75 + 11/25 - 3/50 + 4/25 = 1/75 + 0,44 - 0,06 + 0,16 = 1/75 + 0,54 = 1/75 + 54/100 = 1/75 + 27/50 = 2/150 + 81/150 = 83/150. 

3/7+4/8+2/7+10/8=2 13/181)3/7+2/7=5/72)4/8+10/8=14/8=1 6/8=1 3/43)5/7+1 3/4=20/28+1 21/28=1 41/28=2 13/280,5x+14-3,3x=4,7x-280,5x-3,3x-4,7x=-28-14-7,5=-42:(-7,5)x=5,6Ответ:5,61,75+11/25-3/50+4/251,75+0,44-0,06+0,16=2,29