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Hhhhhiiiiiiiiii
@Hhhhhiiiiiiiiii
July 2022
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47972159
A) 6(x-1) = 9,4 - 1,7x
6x - 6 = 9,4 - 1,7x
6x + 1,7x = 9,4 + 6
7,7x = 15,4 | : 7,7
x = 2
б) 3,5 - 9a = 2(0,5a - 4)
3,5 - 9a = 1a - 8
-9a - 1a = -8 - 3,5 | • (-1)
9a + 1a = 8 + 3,5
10a = 11,5 | : 10
a = 1,15
в) 3(2,4 - 1,1m) = 2,7m + 3,2
7,2 - 3,3m = 2,7m + 3,2
-3,3m - 2,7m = 3,2 - 7,2 | •(-1)
3,3m + 2,7m = -3,2 + 7,2
6m = 4 | :6
m = 2/3 (две третьих)
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Answers & Comments
6x - 6 = 9,4 - 1,7x
6x + 1,7x = 9,4 + 6
7,7x = 15,4 | : 7,7
x = 2
б) 3,5 - 9a = 2(0,5a - 4)
3,5 - 9a = 1a - 8
-9a - 1a = -8 - 3,5 | • (-1)
9a + 1a = 8 + 3,5
10a = 11,5 | : 10
a = 1,15
в) 3(2,4 - 1,1m) = 2,7m + 3,2
7,2 - 3,3m = 2,7m + 3,2
-3,3m - 2,7m = 3,2 - 7,2 | •(-1)
3,3m + 2,7m = -3,2 + 7,2
6m = 4 | :6
m = 2/3 (две третьих)