Ответ:
Пошаговое объяснение:
б) ( 4 7/8 - 1/2х) / 3 1/4 - 15 23/26 = 17 7/26
( 4 7/8 - 1/2х) / 3 1/4= 17 7/26 + 15 23/26
4 7/8 - 1/2х = 23 4/26 * 3 1/4
4 7/8 - 1/2х= 602/26 * 13/4
4 7/8 - 1/2х= 301/2 * 1/2
4 7/8 - 1/2х= 75 1/4
1/2х= 4 7/8 - 75 1/4
1/2х= - 70 3/8
х= -590/8 * 2*1
х= -147 1/2
в) 5 4/14+ 2 2/6х - 1 5/14 - 1 5/6х=9
3 13/14 + 1/2х = 9
1/2х = 5 1/14
х=71/14 * 2/1
х=10 1/7
г) 5 1/3 / (20х - 14 2/11)= 6 3/6 - 2 5/6
20х - 14 2/11= 3 2/3
20х=17 28/33
х= 561/33 * 1/20
х=561/660
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Answers & Comments
Ответ:
Пошаговое объяснение:
б) ( 4 7/8 - 1/2х) / 3 1/4 - 15 23/26 = 17 7/26
( 4 7/8 - 1/2х) / 3 1/4= 17 7/26 + 15 23/26
4 7/8 - 1/2х = 23 4/26 * 3 1/4
4 7/8 - 1/2х= 602/26 * 13/4
4 7/8 - 1/2х= 301/2 * 1/2
4 7/8 - 1/2х= 75 1/4
1/2х= 4 7/8 - 75 1/4
1/2х= - 70 3/8
х= -590/8 * 2*1
х= -147 1/2
в) 5 4/14+ 2 2/6х - 1 5/14 - 1 5/6х=9
3 13/14 + 1/2х = 9
1/2х = 5 1/14
х=71/14 * 2/1
х=10 1/7
г) 5 1/3 / (20х - 14 2/11)= 6 3/6 - 2 5/6
20х - 14 2/11= 3 2/3
20х=17 28/33
х= 561/33 * 1/20
х=561/660