Question

решите уравнение 5 5/14-(3 1/5-3х)=8,3

Answer 1

5 5/14-(3 1/5-3х)=8,3
75/14-(16/5-3x)=83/10
16/5-3x=83/10-75/14
16/5-3x=83*14-75*10/140
16/5-3x=1162-750/140
16/5-3x=412/140
-3x=412/140-16/5
-3x=412-16*28/140
-3x=412-448/140
-3x=-36/140
(уберем минус)
x=36/140:3
x=36/140*1/3
x=12/140=3/35