Ответ:
Пошаговое объяснение:
a)
27 * x = 108 * 2
27x = 216
x = 216 : 27
x = 8
б)
3 * x = 3 3/8 * 2/3
3x = 27/8 * 2/3
3x = 9/4
x = 9/4 * 1/3
x = 3/4
в)
7,8*(x - 1) = 6,5 * 3,6
7,8x - 7,8 = 23,4
7,8x = 23,4 + 7,8
7,8x = 31,2
x = 31,2 : 7,8
x = 4
г)
3 1/2 * x = 1 1/6 * 6/7
3 1/2x = 7/6 * 6/7
3 1/2x = 1
x = 1 : 3 1/2
x = 1 : 7/2
x = 2/7
=========
64 * ( 4x - 3,1) = 112 * 2,8
256x - 198,4 = 313,6
256x = 313,6 + 198,4
256x = 512
x = 512 : 256
x = 2
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Ответ:
Пошаговое объяснение:
a)
27 * x = 108 * 2
27x = 216
x = 216 : 27
x = 8
б)
3 * x = 3 3/8 * 2/3
3x = 27/8 * 2/3
3x = 9/4
x = 9/4 * 1/3
x = 3/4
в)
7,8*(x - 1) = 6,5 * 3,6
7,8x - 7,8 = 23,4
7,8x = 23,4 + 7,8
7,8x = 31,2
x = 31,2 : 7,8
x = 4
г)
3 1/2 * x = 1 1/6 * 6/7
3 1/2x = 7/6 * 6/7
3 1/2x = 1
x = 1 : 3 1/2
x = 1 : 7/2
x = 2/7
=========
a)
64 * ( 4x - 3,1) = 112 * 2,8
256x - 198,4 = 313,6
256x = 313,6 + 198,4
256x = 512
x = 512 : 256
x = 2