1) 5х+10,8=21,42
5х=21,42-10,8
5х=10,62
х=2,124
2) (1,24-х)3,6=3,888
4,464-3,6х=3,888
-3,6х=3,888-4,464
-3,6х=-0,576
х=4,176
3)144/х - 7,6=82,4
144/х=82,6+7,6
144/х=90,2
х=1,5965
1) 5х+10,8=21,42
5х=21,42-10,8
5х=10,62
х=2,124
2) (1,24-х)3,6=3,888
4,464-3,6х=3,888
-3,6х=3,888-4,464
-3,6х=-0,576
х=4,176
3)144/х - 7,6=82,4
144/х=82,6+7,6
144/х=90,2
х=1,5965