Question

1)1-1целая1/2у+3целых2/5у=1целая1/3у-2целых7/15у+2целых1/2
2)2(2/5х+1)+3целых1/3=4-1/2(4/5х-1)

Answer 1

1 - 1 1/2 у+3 2/5 у=1 1/3 у - 2 7/15 у+2 1/2
1 - 1 5/10 у+3 4/10 у=1 5/15 у - 2 7/15 у+2 1/2
1 +1 9/10 у=2 1/2 - 1 2/15 у
1 9/10 у+1 2/15 у=2 1/2 - 1
1 27/30 у+1 4/30 у=1 1/2
3 1/30 у=1 1/2
у=1 1/2 : 3 1/30
у=3/2 * 30/91
у=45/91

2(2/5 х+1)+3 1/3=4 - 1/2(4/5 х-1)
4/5 х+2+3 1/3=4 - 2/5 х+1/2
4/5 х+2/5 х=4 1/2 - 5 1/3
6/5 х=4 3/6 - 5 2/6
6/5 х= - 5/6
х= - 5/6 :6/5
х= - 5/6 * 5/6
х= - 25/36