( 8,3 -к) *4,7 = 5,64
8,3 - к = 5,64 : 4,7
8,3 -к =1,2
к =8,3 - 1,2
к = 7,1
(9,2 - m )*3,2 = 16
9,2 - m = 16 : 3,2
9,2 - m = 5
m = 9,2 - 5
m = 4,2
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160 : (4 * 10) = 160 : 40 = 4
160 : (4 * 10) = 160 : 4 : 10 = 40 : 10 = 4
160 : (4 * 10) = 160 : 10 : 4 = 16 : 4 = 4
810 : (30 * 3) = 810 : 90 = 9
810 : (30 * 3) = 810 : 30 : 3 = 27 : 3 = 9
810 : (30 * 3) = 810 : 3 : 30 = 270 : 30 = 9
420 : (2 * 3) = 420 : 6 = 70
420 : (2 * 3) = 420 : 2 : 3 = 210 : 3 = 70
420 : (2 * 3) = 420 : 3 : 2 = 140 : 2 = 70
480 : (20 * 4) = 480 : 80 = 6
480 : (20 * 4) = 480 : 20 : 4 = 24 : 4 = 6
480 : (20 * 4) = 480 : 4 : 20 = 120 : 20 = 6
720 : (9 * 10) = 720 : 90 = 8
720 : (9 * 10) = 720 : 9 : 10 = 8
720 : (9 * 10) = 720 : 10 : 9 = 72 : 9 = 8
360 : (3 * 2) = 360 : 6 = 60
360 : (3 * 2) = 360 : 3 : 2 = 120 : 2 = 60
360 : (3 * 2) = 360 : 2 : 3 = 180 : 3 = 60
560 : (10 * 8) = 560 : 80 = 7
560 : (10 * 8) = 560 : 10 : 8 = 56 : 8 = 7
560 : (10 * 8) = 560 : 8 : 10 = 70 : 10 = 7
630 : (3 * 30) = 630 : 90 = 7
630 : (3 * 30) = 630 : 3 : 30 = 210 : 30 = 7
630 : (3 * 30) = 630 : 30 : 3 = 21 : 3 = 7
(8,3-к)*4,7=5,64
39,01-4,7к=5,64
-4,7к=5,64-39,01
-4,7к=-33,37
к=-33,37:(-4,7)
к=7,1
проверка:
(8,3-7,1)*4,7=5,64
5,64=5,64
(9,2-m)*3,2=16
29,44-3,2м=16
-3,2м=16-29,44
-3,2м=-13,44
м=-13,44:(-3,2)
м=4,2
проверка:
(9,2-4,2)*3,2=16
16=16