Ответ:
Пошаговое объяснение:
N 3
3х + 1 = 9 * 1. 1/5 : 2,7
3х + 1 = 9 * 6/5 : 2. 7/10
3х + 1 = 54/5 : 27/10
3х + 1 = 54/5 * 10/27
3х + 1 = 2/1 * 2/1
3х + 1 = 4/1
3х + 1 = 4
3х = 4 - 1
3х = 3
х = 3 : 3
х = 1
N 4
6х + 1 = 2,5 * 7,2 : 1. 4/5
6х + 1 = 18 : 9/5
6х + 1 = 18 : 1,8
6х + 1 = 10
6х = 10 - 1
6х = 9
х = 9 : 6
х = 9/6
х = 1. 3/6
х = 1. 1/2 или 1,5
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Ответ:
Пошаговое объяснение:
N 3
3х + 1 = 9 * 1. 1/5 : 2,7
3х + 1 = 9 * 6/5 : 2. 7/10
3х + 1 = 54/5 : 27/10
3х + 1 = 54/5 * 10/27
3х + 1 = 2/1 * 2/1
3х + 1 = 4/1
3х + 1 = 4
3х = 4 - 1
3х = 3
х = 3 : 3
х = 1
N 4
6х + 1 = 2,5 * 7,2 : 1. 4/5
6х + 1 = 18 : 9/5
6х + 1 = 18 : 1,8
6х + 1 = 10
6х = 10 - 1
6х = 9
х = 9 : 6
х = 9/6
х = 1. 3/6
х = 1. 1/2 или 1,5