1= 5а+10
2= 1_3а - 1
2 2 5 2
2) 3 * --- + -- * 3 -- = 118_133 +
19 7 7 19
+295_133 = 413_133 = 59/19 = 3 2_19
3
Пошаговое объяснение:
1 3
-- * 3 = --- = 1
3 3
3 2_19 * 2_7= 59_19 * 2_7 = 118_133
5_7*59_19 = 295_133
413 (:7)
133 (:7)
1= 5а+10
2= 1_3а - 1
2 2 5 2
2) 3 * --- + -- * 3 -- = 118_133 +
19 7 7 19
+295_133 = 413_133 = 59/19 = 3 2_19
3
Пошаговое объяснение:
1 3
-- * 3 = --- = 1
3 3
3 2_19 * 2_7= 59_19 * 2_7 = 118_133
5_7*59_19 = 295_133
413 (:7)
133 (:7)