Question

Решите уравнение: 1) 10-3,4х=9,996. 2) 1,6х+2,3х=0,78. 3)16-2,5х=15,25. 4) 3х-1,7х=2,678

Answer 1

1) 10-3.4х=9.996
-3.4х=9.996-10
-3.4х=-0.004
х=0.004:3.4
х=0.04:34
х=4/3400=1/850

2) 1.6х+2.3х=0.78
3.9х=0.78
х=0.78:3.9
х=7.8:39
х=0.2

3) 16-2.5х=15.25
-2.5х=15.25-16
-2.5х=-0.75
х=0.75:2.5
х=7.5:25
х=0.3

4) 3х-1.7х=2.678
1.3х=2.678
х=2.678:1.3
х=26.78:13
х=2.06