Решите уровнение 1. y-2/7=1/3 2. x-5/6=7/9 3. y-3/8=5/32 4. y -2/5=1/2
1.x= 1 + 2 = 7+6 = 13 3 7 21 21 2.x= 5 + 7 = 45 + 42 = 87 = 29 6 9 54 54 18 3.y= 3 + 5 = 12+5 = 17 8 32 32 32 4.y= 2 + 1 = 4 + 5 = 9 5 2 10 10