Ответ №1
1) (2d+7)/7 =1/7
(2d+7)/7 -1/7 =0
2d +7 -1 =0
2d +6=0
2d = -6
d = -3
2) 5m/9 -10/9 =0
5m -10 =0
5m =10
m =2
Ответ №1
1) (2d+7)/7 =1/7
(2d+7)/7 -1/7 =0
2d +7 -1 =0
2d +6=0
2d = -6
d = -3
2) 5m/9 -10/9 =0
5m -10 =0
5m =10
m =2
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