Ответ:
5. (4x+5):13=8:9
9*(4x+5)=13*8
36x+45=104
36x=104-45
x=59:36
6. (36:41)*y=(2:3)*(7:12)
(2:3)*y=(36:41)*(7:12)
(2:3)*y=21:41
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Ответ:
5. (4x+5):13=8:9
9*(4x+5)=13*8
36x+45=104
36x=104-45
x=59:36
6. (36:41)*y=(2:3)*(7:12)
(2:3)*y=(36:41)*(7:12)
(2:3)*y=21:41