a) 1 + 3/4x = 3 1 + 3/4x = 3 3/4x = 2 x = 2 * 4/3 x = 8/3 x = 2 целых 2/3
б) 1 + 4/5x = 7 1 + 4/5x = 7 4/5x = 6 x = 6 * 5/4 x = 30/4 x = 7 целых 2/4 x = 7 целых 1/2
a) 1 + 3/4x = 3
1 + 3/4x = 3
3/4x = 2
x = 2 * 4/3
x = 8/3
x = 2 целых 2/3
б) 1 + 4/5x = 7
1 + 4/5x = 7
4/5x = 6
x = 6 * 5/4
x = 30/4
x = 7 целых 2/4
x = 7 целых 1/2