1) 6 3/4 : 1 1/8 = 27/4 : 9/8 = 27/4 * 8/9 = 216/36 = 6
2) 8,4 : y = 840/100 : y = 21/25 : y
3) 2(x+7) = 6(x-3) + 6832x + 14 = 6x - 18 + 6832x + 14 = 6x + 665-4x = 651x = -162.75
4) 683 1/3 : 2 2/3 = 2050/3 : 8/3 = 2050/24 = 85.4167
5) 4(x-3) = 7(4+x) - 314x - 12 = 28 + 7x - 314x - 12 = 7x - 3-3x = 9x = -3
1) 6 3/4 : 1 1/8 = 27/4 : 9/8 = 27/4 * 8/9 = 216/36 = 6
2) 8,4 : y = 840/100 : y = 21/25 : y
3) 2(x+7) = 6(x-3) + 683
2x + 14 = 6x - 18 + 683
2x + 14 = 6x + 665
-4x = 651
x = -162.75
4) 683 1/3 : 2 2/3 = 2050/3 : 8/3 = 2050/24 = 85.4167
5) 4(x-3) = 7(4+x) - 31
4x - 12 = 28 + 7x - 31
4x - 12 = 7x - 3
-3x = 9
x = -3