Рншите пожалуйста!!! 1 2/3+4/9z+2 1/3z=5 5/9
1 2/3+4/9z+2 1/3z=5 5/9 5/3+4/9z+7/3z=50/9 25/9z=50/9-5/3 25/9z=35/9 z=35/9:25/9 z=35/25=7/5=1 2/5
1 2/3 + 4/9z + 2 1/3z = 5 5/9 5/3 + 4/9z + 7/3z = 50/9 4/9z + 21/9z = 50/9 -15/9 25/9z = 35/9 z = 35/9 : 25/9 z = 7/5 z = 1 2/5