-118/12*b+33/12*b+17/12*b=34/27;
-68/12*b = 34/27;
-68/34*b=12/27;
-2b=12/27;
b=-6/27;
b=-2/9.
1512=2*2*2*3*3*3*7
8400=2*2*2*2*3*5*5*7
НОД=2*2*2*3*7=168
НОК=1512*2*5*5=75600
2016=2*2*2*2*2*3*3*7
2912=2*2*2*2*2*7*13
НОД=2*2*2*2*2*7=224
НОК=2912*3*3=26208
= 8/17 * (3/11 + 8/11) + 20 * (4 13/27 - 13/27) = 80 8/17
1) 3/11 + 8/11 = 11/11 = 1
2) 4 13/27 - 13/27 = 4
3) 8/17 * 1 = 8/17
4) 20 * 4 = 80
5) 8/17 + 80 = 80 8/17
1)16 1/2 : 8 1/3=16 3/6 : 8 2/6
2)16 2/5 : 6 5/6=16 12/30 : 6 25/30
3)5 1/6: 6 8/9=5 3/18 : 6 16/18
4)17 3/5 : 1 31/35= 17 21/35: 1 31/35
357z-149z-1843=11469
208z = 11469+1843
208z= 13312
z= 13312 : 208
z =34
<span>2y+7Y+78=1581
9y = 1581-78
9y = 1503
y =1503: 9
y =167</span>