Решите уравнение:
(1/3+1/2)*x=3,75
(3/5-0,25)*х=4,9
(7/8-0,2)*х=8,1
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1/3х+1/2х=3,755/6х=3,75
х=3,75:5/6
х=4,5
3/5х-0,25х=4,9
0,6х-0,25х=4,9
0,35х=4,9
х=4,9:0,35
х=14
7/8х-0,2х=8,1
7/8х-1/5х=8,1
27/40х=8,1
х=8,1:27/40
х=12